nightscape – Page 3 – The Amazing Sky

September 17, 2013

Pleiades Rising Through the Old Farm Gate

The Pleiades rises beyond the old farm gate on a moonlit prairie night.

It’s been a wonderful few nights for nightscape photography, with a bright gibbous Moon lighting the golden prairie landscape. Skies have been clear and the nights warm, ideal for 3-hour shoots of old farmsteads and prairie scenes.

I’ve spent the last few nights at the abandoned farm near home, shooting time-lapses. This is from Monday night, and is one frame from a 360-frame dolly-motion time-lapse.

The Pleiades star cluster rises in the east over the old barn and farm gate. A car travels through the coulee, leaving a streak of headlights.

I hope the weather continues, so I can harvest some more images, making time-lapse “hay” while the Moon shines!

September 8, 2013

Moon and Venus in the Prairie Twilight

Tonight, the waxing crescent Moon passed by Venus for a close conjunction in the evening twilight.

At this time of year from my latitude of 51° north, the evening ecliptic always swings low across the southwest. So any fall evening planets, and the Moon, appear low on the horizon and set early.

That was the case tonight, for the close passage of the Moon past Venus (at right). However, their altitude allowed me to capture them and the prairie horizon in the same telephoto lens field.

It was certainly a beautiful sight over the harvested prairie fields, on what feels like an autumn night, though officially it is still summer.

September 7, 2013

The Great Arc of the Milky Way

The Milky Way sweeps in a great arch of light across the sky.

It’s been a wonderful week for shooting the Milky Way. I had a very clear night on Tuesday but ventured no further than a few hundred feet from home to the harvested canola field next door.

The Milky Way was beautifully placed, as it always is at this time of year, right across the sky from northeast to southwest, with the starclouds of Cygnus passing directly overhead.

The top photo is a panorama of 8 shots, with a camera on a tripod, and each exposure being just 60 seconds with a 14mm lens in portrait orientation. I stitched the segments with PTGui software, rendering the scene with its spherical projection mode which wraps the dome of the sky onto a flat surface in a way that retains the zenith detail as your eye saw it, but greatly distorts the extremities of the scene at either end.

My house is at lower right.

For this image, I used the same lens to take a single view from horizon to well past the zenith. Here the camera was tracking the stars for a set of stacked 5-minute exposures to grab even more detail in the Milky Way.

What stands out as much as the Milky Way are the green fingers of airglow stretching across the sky. These were invisible to the eye but the camera sure picks them up.

Airglow is caused by oxygen atoms, in this case, fluorescing at night as they release some of the energy they absorbed by day. It’s not aurora and generally covers more of the sky, sometimes with a diffuse glow or, as here, with more structured bands that slowly shift over minutes. It varies from night to night and can occur at any latitudes. But usually only cameras pick it up. To the eye, airglow just makes the sky look inexplicably a little less dark than you think it should be on such a clear night.

September 3, 2013

Last of the Summer Milky Way

The summer Milky Way sets behind the peaks of Waterton Lakes National Park, signalling an end to summer.

This was the scene last Saturday night, on a perfect summer night in the Rockies. The glorious starfields of the summer Milky Way are setting behind the mountains.

The Small Sagittarius Starcloud is just above the mountain ridge while above it are the red patches of the Swan and Eagle Nebulas.

Farther up the Milky Way, stars brighten into another starcloud, the Scutum cloud, flanked by two dark lanes of dust. Above it shine the stars of Aquila, Ophiuchus, Lyra, and southern Cygnus. The two bright stars are Altair (below) and Vega (top right).

This is an alternative view of the same scene, with the camera in “landscape” orientation.

I took both from a pull-off on the Red Rock Canyon road in Waterton. Each image is a stack of four 3-minute exposures, each tracking the stars with the camera on an iOptron SkyTracker.

The Milky Way from Canada just doesn’t get any clearer or the skies any darker.

September 2, 2013

The Milky Way over Milk River

The summer Milky Way sets over the Milk River on the last weekend of the summer.

This was the view last night, Sunday, September 1, from the Visitor Centre hill overlooking the spectacular Milk River valley and the sandstone formations of Writing-on-Stone Provincial Park, Alberta.

The Milk River winds around the park’s campsite, filled on a beautiful long weekend with campers enjoying the clear skies and temperatures in the 30s by day. At night, conditions were perfect. Warm, dry, no bugs, no wind. The best.

I set up two cameras: one for a day-to-night time lapse and one for a time-lapse panning the scene as the Milky Way moved to the west. These two images are frames from the latter.

Above is a shot from later in the evening when the sky was dark …

… while this image is from earlier in the shoot, when the last of the blue twilight still lit the sky and the camera was aimed a little more to the east.

On the horizon at left in the image above lie the Sweetgrass Hills of Montana, a prominent landmark in southern Alberta. The yellow sky glows are from towns in northern Montana.

Lights from the campground and car headlights illuminate the landscape and the eroded hoodoo formations.

Writing-on-Stone Park preserves ancient rock petroglyphs that record scenes from before and after contact with Europeans. It is a sacred site to First Nations people and is a marvellous place for stargazing.

September 1, 2013

Waterton Lakes Panoramas (Night and Day)

Two panoramas compare the view of Waterton Lakes National Park by night and by day.

Last night was as perfect as it gets here in the southwest corner of Alberta. The sky was crystal clear and the wind was calm, unusual for Waterton Lakes.

I spend the night travelling around the Park shooting nightscapes, including this night pan taken from the shoreline in the townsite, again contending with the light pollution of unshielded town streetlights, and the glare from lights on the Prince of Wales Hotel. But even they can’t wash out the marvellous Milky Way.

Just after taking this I went up to the Hotel to shoot scenes from its overlook, back toward the town. As I walked up to the Hotel, a guest was getting out of her car and waving an iPhone around with an astronomy app, hoping to see the stars. I overheard her saying, “I guess we won’t see a lot of stars from here,” referring to the glare of the lights of the Hotel.

The night panorama sweeps from northwest to southwest over 270°. At left we’re looking north toward the prairies. An aurora there would have been well-placed and timed. As it is, there is just the faintest hint of Northern Lights. At right, is the centre of the Galaxy area of the Milky Way.

Stars shine reflected in the unusually clam waters of Upper Waterton Lake.

This day panorama takes in a smaller angular sweep. I took it from a similar shoreline location just at sunset, as the last rays of the Sun lit Vimy Peak in alpenglow. Returning to dock on the last voyage of the day is the historic tour boat, The International, a wood-hulled ship built in 1927, the same year the Prince of Wales Hotel opened. It plies these waters every summer and by winter is stored in a dry dock down the lake on the U.S. side.

It’s been a wonderful weekend here. More photos are in the processing pipeline. But for now, it’s off to Writing-on-Stone Provincial Park.

August 31, 2013

Stars over a Grand Hotel

The stars and fleeting clouds appear over the grand Prince of Wales Hotel in Waterton Lakes National Park.

This was the scene last night, Friday, August 30, on a less than ideal night for nightscape shooting. But I made the best of it with some still shots in and around the Waterton townsite.

This is a view from Driftwood Beach on Middle Lake, looking south toward the Prince of Wales Hotel, the Park’s famous landmark, and a well-illuminated one at that. It shines beneath the Milky Way and clouds lit yellow from the town’s streetlights. It would take some work converting this site into a Dark Sky Preserve!

Built in 1927, the Hotel is a large log structure that has miraculously survived fire, and the howling winds that can blow at gale force down the lake. It was built by the American Great Northern Railway to lure American tourists north from Montana’s Glacier National Park.

August 31, 2013August 31, 2013

The Milky Way at Waterton Lakes

The Milky Way glows bright in the twilight of a summer evening at Waterton Lakes National Park.

It’s been a marvellous weekend so far at Waterton Lakes, with another fine night ahead it appears, on a warm weekend to end the summer. Two nights ago I set up cameras on the shore of the main lake, shooting south to the Milky Way. The main photo above shows the Milky Way while the sky was still deep blue with evening twilight.

Light from the campground streetlights illuminates the old tree and foreground. It is light pollution to be sure, but sometimes added lighting can help, especially on a dark moonless night.

This shot comes from later in the evening with a wider angle lens and shows the Milky Way under dark sky conditions at the end of the long Upper Waterton Lake that extends south into Montana and Glacier National Park.

By stacking about 35 images taken in quick succession, each 1-minute exposures, I created this star trail effect. I used the new version of StarStaX, a free program that does a great job stacking star trails. Its latest version offers this neat “comet trails” effect as an easy-to-apply stacking option.

August 30, 2013August 30, 2013

Waterton Lakes by Night

The Milky Way shines over the peaks of Waterton Lakes National Park on a clear summer night.

This was the view last night, August 29, under very clear skies, on the Red Rock Canyon Road in Waterton Lakes National Park, a UN World Heritage Site and a beautiful place for day and nighttime photography.

This is a 7-frame panorama sweeping over about 180° from the southeast at left and into the northwest at right, taking in the autumn constellations rising at left, over to the Milky Way in the south and to the Big Dipper skimming across the northwest horizon at right. Each frame was a 30-second exposure at f/2.2 and ISO 1600.

The green glow at left is from airglow, while the yellow and magenta colours at right are from low-level aurora and from the lights of Pincher Creek and the Crowsnest Pass communities. The bright light at left of centre is from the lights adorning the Prince of Wales Hotel, set amid the general glow of streetlights from the townsite of Waterton Lakes.

The foreground is lit only by starlight.

August 27, 2013August 27, 2013

Milky Way Over Moraine Lake

The summer Milky Way shines from behind clouds coming over the Continental Divide at Moraine Lake, Banff.

Earlier in the day, thousands of people stood here, admiring the famous view of Moraine Lake set in the Valley of Ten Peaks. This was the view by night, before the waning Moon rose to light the scene. I was the only one there.

A couple of hours after I took this image, the peaks were well lit by moonlight, but clouds had moved in to obscure the stars. This shot from the start of the night shows the sky at its clearest and darkest.

The last time I visited Moraine Lake at night was back in the 1990s shooting with 6×7 film. I’ve wanted to get back with digital cameras for some years. Last Sunday, August 25 was my chance.

Despite the encroaching clouds, I managed to shoot time-lapses with three cameras: a dolly shot with the Dynamic Perception Stage Zero, a pan in azimuth with the new Radian controller, and a tilt-pan with the Sky-Watcher AllView mount. All worked well, but had the night been perfectly clear the movie clips and stills would have been all the nicer. But you go with what the mountains deliver.

This is one of the best of the frames from the night’s shoot, taken with a 14mm Rokinon lens for 60 seconds at f/2.8 and Canon 5D MkII at ISO 4000.

It shows one of the issues with shooting near lodges and resorts – yes, it’s convenient and safe (I’m reluctant to hike far in the dark alone, with Grizzly in Area and Travel in Groups signs about!) but even the most eco-friendly of resorts fail to realize the effects of their lights spilling out over the natural landscape. In this case, they do help light the dark scene, but they are pollution. When, oh when, will parks and resort operators begin to realize that the night is an environment to be protected as well, and not a jurisdiction to be ruled by lawyers and planners who dictate that the worst and usually cheapest types of lighting be installed.

P.S.: This was blog post #350 for me!

August 26, 2013

Big Dipper Over Castle Mountain

The famous stars of the Big Dipper dip behind the moonlit crags of Castle Mountain.

I just got back from four days in Banff, always a great place to be, even if it is cloudy. And it was!

I lost one night to forest fire smoke and another to rain clouds. On Saturday and Sunday nights I managed to seek out some clearer skies for nighttime shooting. This is a shot from Saturday, from a favourite photo stop on the Bow Valley Parkway overlooking the cliffs of Castle Mountain.

Despite the dew from rains earlier in the day I managed to shoot a time-lapse here. These two shots are frames from the movie which pans slowly across the scene.

This frame catches an Iridium satellite flare above the Dipper.

Light from the waning gibbous Moon, which was in and out of clouds itself, illuminates the scene and nicely cross-lights the Castle cliffs.

August 20, 2013August 20, 2013

Cassiopeia Rising in the Badlands

The stars of Cassiopeia rise behind hoodoo formations in the Alberta Badlands.

I took this Sunday night, August 18, as part of my shoot at Dinosaur Provincial Park. This is a particularly striking pair of hoodoos at the start of the Badlands Trail where I’ve been meaning to take some moonlit nightscapes for a couple of years.

This night’s conditions were perfect, with the “W” of Cassiopeia nicely placed, and the Moon providing excellent cross-lighting, under a clear blue sky, for the contrasting colours of earth and sky.

August 19, 2013

Dinosaur Moon

The waxing Moon rises into a colourful twilight sky over the badlands of Dinosaur Provincial Park.

What a great night it was last night! Warm summer temperatures (at last!) allowed for shirtsleeve shooting even well after dark. To shoot on the warm August night I went out to Dinosaur Provincial Park, a magical place to be at sunset and in the summer twilight. The colours on the badlands are wonderful. It’s earth-tones galore, with the banded formations from the late Cretaceous blending with the sagebrush and prairie flowers.

This was the scene after sunset, as the waxing Moon rose into the eastern sky coloured by the blue band of Earth’s shadow, the pink Belt of Venus and dark blue streaks of cloud shadows converging to the point opposite the Sun. That’s where the Moon will be Tuesday night when it’s full. But last night it was a little west of the anti-solar point.

I managed to grab this image as soon as I got to my photo spot on the Badlands Trail, just in time to catch the last rays of the setting Sun illuminating the bentonite hills of the Badlands. Both shots are frames from a 450-frame time-lapse, taken with a device that also slowly panned the camera across the scene over the 90-minute shoot.

It, and three other time-lapses I shot after dark, filled up 40 gigabytes of memory cards. It’s been a terabyte summer for sure!

August 14, 2013

Wheatfield Moon

The waxing Moon shines above a ripening field of wheat on a prairie August evening.

A track winds off through the wheat field toward the western twilight sky, while a waxing Moon shines in the south.

This was the scene tonight just down the county road where I live, on a warm August night on the Canadian Prairies.

For this shot, I assembled a high dynamic range set from eight exposures taken over a range of 8 f-stops, to compress the wide range of brightness into the one photo. Even so, the Moon remains overexposed. But I like shooting these scenes in deep twilight for more saturated colours and for some stars in the sky.

August 11, 2013August 11, 2013

Space Station Over a Star Party

The Space Station flies over a campground of astronomers awaiting the fall of darkness.

Last night was the main night for summer star parties, being a dark-of-the-Moon Saturday in August. As I usually am each year, I was in Cypress Hills, Saskatchewan, attending the annual Saskatchewan Summer Star Party. About 330 attended this year, a near record year.

The night was partly cloudy but stayed clear enough for long enough to allow great views. As the sky was getting dark the International Space Station flew over from horizon to horizon, west to east, passing nearly overhead. I had a camera and ultra-wide lens ready and caught the pass in 10 exposures, each 30 seconds long, here stacked in Photoshop. The accumulated exposure time also makes the stars trail in circles around the North Star at upper right.

It was one of many fine sky sights hundreds of stargazers enjoyed this weekend at the SSSP, and no doubt at dozens of other star parties around the continent this weekend.

August 4, 2013

Saturday Night Under the Stars

On a summer Saturday night hundreds gathered to enjoy the stars and Milky Way.

What a fine night this was. Last night, Saturday, August 3, I helped out at one of the annual Milky Way Nights presented by the University of Calgary’s Rothney Astrophysical Observatory. About 300 people attended, under nearly perfect conditions. The few clouds that rolled through later in the night didn’t detract from the views of the Milky Way and deep-sky objects.

Part way through the night I conducted a laser tour of the night sky. It was pretty neat presenting a “planetarium show” under the real stars to about 150 people gathered on the hillside lying on blankets and in lawn chairs. Astronomy outreach doesn’t get much better!

Folks from the local astronomy club set up their telescopes on the patio for public viewing. This is a fish-eye lens image I took in the twilight for use in an upcoming digital planetarium show I’m working on that will tour people through the Milky Way.

A highlight was the opportunity for people to look through one of the largest telescopes in Canada, the 1.8-metre ARC Telescope that is normally used for spectroscopy but can actually be equipped with an eyepiece. Here, observatory director Dr. Phil Langill lines up the telescope on Neptune.

The event went from 10 p.m. to 2 a.m. We started these Milky Way Nights in 2009 for the International Year of Astronomy and they have been big hits every summer since, one of the legacies of IYA.

July 29, 2013

Moonshadows and Sunbeams

The play of light and shadow in the open air create wonderful effects by night and day.

The Moon and Sun have each created some wonderful sky scenes of late, aided by clouds casting shadows and sunbeams across the sky.

Above, the rising waning Moon on Saturday night shone its warm light across the prairies. Clouds cast dark shadows diverging away from the Moon.

By day, clouds created the opposite effect. Holes in the clouds let through beams of sunlight, creating rays descending from the sky dancing across the land.

Both effects are technically known as crepuscular rays. You can read much more about the phenomenon at the wonderful Atmospheric Optics website. Clouds aren’t always the evil presence in the sky astronomers take them for. They can produce stunning effects. Just look up!

July 28, 2013

Canola Field Stars

Stars in a blue sky wheel above a ripening field of yellow canola.

It’s been a couple of fine nights of nightscape shooting under the light of the waning Moon and clear skies.

I’ve been shooting from no more exotic location than my local rural neighbourhood, travelling for 5 minutes to spots near one of the many canola fields growing nearby. I wanted to grab some nightscapes over the fields before they lose their yellow flowers and turn green.

The feature image above looking north is from a time-lapse sequence and stacks several images with the “comet trail” effect, to show the northern stars turning about the North Star.

This image, also a frame from another time lapse with a longer lens, shows the Big Dipper above that same field but in an exposure short enough to prevent the stars from trailing. You can now make out the familiar Dipper pattern.

This is a very Canadian scene, with the Big Dipper high in a northern latitude sky, and with the foreground crop a Canadian one – Canola was developed in the 1970s at the University of Manitoba. The “can” in canola stands for Canada. Pity there was no aurora.

July 25, 2013

Star Rain

The sky seems to swirl in a rainstorm of stars.

I’ve combined several exposures of the stars in the northern sky to create a “comet trail” effect, showing them turning about the celestial pole. The top photo looks northwest to the stars around the Big Dipper and picks up the purple light of a faint aurora.

For the photo below, taken on a different night, I used a fish-eye lens to capture the entire sky, but looking north. You can see how the sky turns counterclockwise about the Pole Star. The Milky Way also appears as a blurred band of light.

I shot these last week from the cabin at Reesor Ranch in Saskatchewan during a wonderful week of nightscape photography in the Cypress Hills.

To create these images I used the Advanced Stacking Actions from Star Circle Academy.

July 17, 2013

Wild Rose Stars

The floral emblem of Alberta, the wild rose, appears in front of a twilit starry sky.

Last night was another good one on the Ranch! I had three cameras shooting from my log cabin front yard – I had no ambition to travel farther afield this night, after 6 nights in a row of shooting around the Cypress Hills. This is a scene from one of the time-lapses taken from “home,” of prairie flowers in front of a prairie sky.

I also took the opportunity to reshoot the popular “Milky Way over Log Cabin” scene, getting better results I think than the shot I posted from the first night I was here a week ago. This was with the specially-modified camera that picks up the red nebulosity in the Milky Way better. The colours are much nicer.

Finally, this is a 360° panorama of the scene from last night, taken before the Moon set but when it was behind the trees out of sight. Its light still illuminates the sky blue, yet the Milky Way still stands out. The red lights are from two other cameras shooting time-lapses. This is big sky country for sure!

It’s been a wonderful week of shooting on the century-old Reesor Ranch in the Cypress Hills. I highly recommend the location for anyone who wants an authentic western experience in a stunning setting. I’m sure I’ll be back.

July 16, 2013July 17, 2013

High Plains Panorama of the Night Sky

The silvery Milky Way and green bands of airglow stretch across the high plains and big sky of the Cypress Hills.

The Moon had long set and the night looked as dark as it could be. No lights interrupted the flat clear horizon. These are the high plains of the Cypress Hills, the highest place in Canada between Labrador and the Rockies.

And yet, in the panoramic photos I took last night the sky revealed its true colours.

In the 360° panorama above, the Milky Way arches overhead from northeast to southwest. It was obvious to the naked eye. But stretching across the sky from east to west are also bands of green and red airglow that were completely invisible to the eye, except perhaps for making the sky look more grey than it might have otherwise.

These aren’t aurora but are emissions of light caused by oxygen atoms fluorescing as they give off some of the energy they absorbed by day. Time-lapse sequences show these bands moving slowly across the sky.

I drove up the Graburn Road last night, to the plateau of Cypress Hills, to shoot a time-lapse of the Milky Way moving above this lone tree on the plains. It’s called the Survivor Tree, subject to drought, blizzards fire, cattle, and even being cut down at one time. But still it survives. With a cold wind blowing last night I had a taste of what this tough Lodgepole Pine has had to endure.

This is one frame from the final movie clip, with the tree and sky still lit by the light of the setting waxing Moon. An enduring tree beneath the timeless stars.

Early in the evening the northern sky was also marked by another sky phenomenon, noctilucent clouds – very high altitude clouds still lit by sunlight long after the Sun has set locally. These clouds made for a nice photo for a few minutes but soon faded from view as the Sun set even as seen from where these clouds live at the edge of space.

The night was left dark, with no aurora tonight – just the Milky Way and the faint wisps of airglow over the high plains of southern Alberta.

July 15, 2013

Road to the Northern Lights

A country road winds off into the dancing Northern Lights.

The sky put on another fine show last night, the fourth in a row with some level of aurora activity. This was the scene Sunday night as a display blossomed for a while, dancing at the end of the back road through the Cypress Hills on the Alberta-Saskatchewan border.

I had one camera shooting north and devoted to the Northern Lights, while, as you can see below, I had two other cameras on rigs to shoot time-lapse movies looking south.

This was the scene at the overlook to the Battle Creek valley, with the Moon setting and me getting the time-lapse gear going, to shoot the Milky Way moving over the hills. One camera was on a mount to pan across the landscape following the stars. The other camera was on a motion control dolly to travel down a track over the 3 hours of the shoot. I spent a lot of time in the car listening to BBC Desert Island Discs and The Life Scientific podcasts last night — the thrill of time-lapse shooting!

This is one frame from one of the movies. Streaks of green and red airglow tint the sky around the Milky Way. Amazingly, the scene is lit only by starlight and by the aurora. You could never have done this with film. It’s the sensitivity of digital cameras that makes such scenes possible, though it takes some clever processing (such as Shadow Detail recovery in Raw, Shadows and Highlights, & masked Adjustment Layers) to balance Earth and sky in the final image.

July 15, 2013

Milky Way Over a Misty Lake

The misty starclouds of the Milky Way shine above the misty waters of Reesor Lake.

This was certainly a magical scene – the stars above the still waters of a misty lake. Above the tree-lined hills lies the constellation of Sagittarius and the heart of the Milky Way. The dark structure comes from interstellar dust, the stuff we’re made of. Everything in the foreground on Earth comes from the stuff you can see in the sky.

I shot this Saturday night, on a beautiful, if damp, night for nightscape photography in the Cypress Hills, Alberta. I helped the scene along by “painting” the mist with a white flashlight.

For those who like their Milky Way images in portrait mode, here’s one of the same scene, showing more of the sweep of the summer Milky Way up from the southern horizon, from Sagittarius to Aquila.

And while I don’t often take shots of people in scenes, I couldn’t resist getting into the photo myself here, standing on the boardwalk gazing at the centre of the Galaxy.

July 14, 2013July 14, 2013

Moonset on a Misty Lake

What a marvelous night for a moonset!

Saturday night was one of the finest nights for nightscape shooting I’ve had in a long time. I started with shots of the waxing Moon setting over Reesor Lake, one of the lakes in Cypress Hills Interprovincial Park, on the Alberta side. Water from this lake drains into the Milk River and then into the Missouri, and Gulf of Mexico. It one of the few bodies of water in Alberta that feed the Mississippi watershed, with the Cypress Hills acting as a continental divide.

I set up two cameras, each shooting a twilight-to-night time-lapse sequence showing the Moon setting behind the hills and the stars coming out. I filled up one card with 600 images. Luckily, the other camera still had space left for what was still to come later that night. One sight was the beautiful auroral arc I featured in my previous blog post. I’ll have more tomorrow, of the Milky Way over the lake.

It had rained earlier in the day so the air was humid. Mist covered the lake as night fell. In the scene above, a small fleet of American pelicans also glide by.

Watching the peaceful scene while monitoring the cameras clicking away provided one of those magical moments that makes doing this photography worthwhile, regardless of the results. The mist was swirling, the stars were coming out, I put on some music on the iPhone and on came a Chopin nocturne. Perfect.

July 14, 2013

The Grand Sweep of the Auroral Oval

The Northern Lights sweep across the northern horizon in a classic arc of green and magenta curtains.

The aurora on the night of July 13/14 never got very bright but the sweep of the auroral oval still made for an interesting panoramic image.

I shot this at about 2 a.m. local time, from the high plains of southwest Saskatchewan, right on the Alberta-Saskatchewan border, on the rolling hills of the historic Reesor Ranch. The only man-made light visible is a glow on the horizon just left of the auroral arc, from the city of Medicine Hat, Alberta.

The panorama takes in about 180° of sky, framing the sweep of the auroral oval across the northern horizon from northeast to northwest. In fact, you can see the gravel road I was on at far left and far right. The main band of green from glowing oxygen is topped by curtains of magenta, from oxygen and nitrogen atoms.

If you could see this display from space you would see it as an oval of light across the top half of North America. From my perspective on Earth, I could see just a portion of the complete oval, as an arc across the northern sky.

To create this image I shot 6 segments at 30° spacings, each a 30-second exposure with a 24mm lens at f/2.8 on a Canon 5D MkII at ISO 1600. I used Photoshop to stitch the segments. It blended them seamlessly.

July 13, 2013July 13, 2013

Star and Satellite Trails

A long exposure captures streaks from the turning stars and passing satellites.

This was a busy sky. The feature photo stacks a dozen images taken over 6 minutes.

During that time the northern stars around the Big Dipper turned about the celestial pole just off frame at upper right.

Meanwhile, two satellites passed through the field, both flaring in brightness briefly, tracing tapered streaks from left to right above the treetops. These may have been Iridium satellites, infamous for producing sunglint flares as they momentarily reflect the Sun from their mirror-like antenna panels.

A magenta aurora tints the northern sky as well.

This image is from the same sequence of 300 or so I took last night for a time-lapse movie, but this is a single 30-second exposure so the stars look more natural and pinpoint. Now you can make out the familiar pattern of the Big Dipper.

I shot several sequences last night, until the clouds rolled in and curtailed photography. However, skies are clearing again and the forecast is for several clear nights to come over the Cypress Hills. I’ve got a few locations picked out for time-lapse shooting if the skies cooperate.

July 12, 2013

Log Cabin in the Milky Way

The summer Milky Way shines over a log cabin in the woods of the Cypress Hills.

This was the view this morning, at 2 a.m., as the Milky Way of northern summer shone over my vacation log cabin on the Reesor Ranch in Saskatchewan. After the clouds cleared the sky was beautifully dark for a while before the early dawn twilight came on.

The view here takes in the Milky Way from the Scutum star cloud above the trees to the dark dust clouds of northern Cygnus overhead. The trio of Summer Triangle stars, Deneb, Vega and Altair, flank the Milky Way.

This is a composite of five tracked and stacked images for the sky and one image for the foreground shot with the iOptron Skytracker running at half speed to minimize the blurring from the tracking motion. The lens was the 14mm Samyang at f/2.8.

July 11, 2013

The Purple Curtains of Northern Lights

Curtains of purple and pink top the usual green bands of aurora.

The last couple of nights have been very clear and filled with aurora. Two nights ago, July 9, the sky really let loose for a good display showing a great range of colours. Only the green was readily visible to the naked eye, but the cameras picked up the fainter bands of purple and magenta.

Most of the colours here come from oxygen atoms glowing. But high up, in the near vacuum of space, oxygen can glow red. The curtains can also be lit by sunlight coming over the pole, lending a blue tint to the aurora. The two colours blend to give purple.

Lower down in the atmosphere, green lines from oxygen predominate. When an aurora is very energetic, the incoming electrons can trigger nitrogen lower in the atmosphere to glow red and pink, giving the curtains a red fringe on the lower edge. That didn’t happen this night.

This fish-eye shot of the entire sky shows the high purple curtains arching up the sky. Over several minutes they separated and ascended away from the main green band, shooting up the sky. It seemed as if they were their own curtains and not just a different coloration fringing the main display.

The Northern Lights have been active lately so keep an eye on Spaceweather.com and AuroraWatch for alerts and warnings.

July 9, 2013July 10, 2013

Sunrise on the Plains

The Sun rises into a pastel palette of sky and earth tones.

I woke up early, just at sunrise, looked outside and wow!

I grabbed the camera and telephoto and got another nice shot right from my back deck. The canola field next to my yard is proving to be a photogenic foreground now that it’s in full bloom, just in the last couple of weeks.

There was enough haze and humidity in the air to dull the Sun to a fiery orange. The range of shades in earth and sky was wonderful. It was a classic prairie scene worth getting up for.

Being able to see the horizon is why I live on the plains and not in the foothills or mountains. And certainly not in the city!

July 7, 2013

The Milky Way over a Canola Field

The Milky Way arches over a field of yellow canola on a dark summer night.

The night was beautifully clear and moonless with a glow to the north of perpetual twilight still lingering. The Milky Way was obvious so I hiked to the middle of the canola field next to my house, visible here lit by the red lights at left.

To shoot this panorama I used the same technique as in the The Colour of Dark panorama image from last month which has proved quite popular: I shot eight exposures at 45° spacings using the 8mm fish eye lens. Each was a 60 second exposure at ISO 4000 and f/3.5. I assembled the panorama using PTGui software, from images processed in Adobe Camera Raw.

The sky was well exposed but the ground was still dark, lit only by starlight. It took some processing in Camera Raw (Shadow Detail) and Photoshop (Shadows and Highlights) to bring out the yellow field of canola in the foreground.

While the sky looked neutral grey to the eye, I’ve punched up the colours a lot to reveal the blue twilight, green and magenta aurora to the north, bands of greenish airglow across the sky, and yellow glows of light pollution.

The odd streaks of light on the canola are reflections of the horizon lights in the soaking wet dew on the canola. It was a very damp night after a day of rain.

July 1, 2013

Aurora over a Prairie Lake

A brief display of Northern Lights shines over a prairie lake.

Last night I went out to a nearby lake (there aren’t many in southern Alberta!) to shoot the twilight over water, and hoping to catch some aurora or noctilucent clouds as well.

There was lots of twilight but very little sign of aurora or NLCs. But at about 1 am the aurora kicked up briefly, enough to make a good photo but certainly nothing to get excited about for its visual appearance. It was just visible.

However, it was a fine evening of shooting at a quiet prairie lake. Crawling Lake is one of several reservoirs in the area that are part of the extensive irrigation system in southern Alberta. Despite the recent floods, this area is usually dry and drought-sticken.

This shot, which I took early in the evening, shows the lone star of Capella, shining in the twilight of a solstice summer sky. From my latitude of 51° N, Capella, normally considered a winter star, is circumpolar. It never sets and so can be seen skimming along the northern horizon on short summer nights.

An ultra-wide view shows the perpetual twilight of summer to the north, with the circumpolar stars of summer above. A campfire from some late-arriving campers is on the shore at right.

Happy Canada Day!

June 29, 2013

Night of the Northern Lights

The Northern Lights danced all night, as Earth was buffeted by winds from the Sun.

As soon as I saw the warning notices at Spaceweather.com I was hoping we would be in for a wonderful night of aurora watching. I wasn’t disappointed.

Forewarned, I headed out to the Wintering Hills Wind Farm near my home in southern Alberta. I thought it would be neat to get shots of the effects of the solar wind from beneath and beside the wind turbines of the farm. The shot above is from a time-lapse movie taken with a fish-eye lens that will look great when projected in a full-dome digital planetarium.

I shot with three cameras, with two aimed east to where the brightest part of the auroral arc usually sits. It was also exactly where the Moon would rise after midnight. This shot, above, captures the scene right at moonrise, which was also right when the aurora kicked into high gear as a sub-storm of solar particles rained down on our upper atmosphere. The ground lit up green with the glow of oxygen in the mesosphere, some 100 kilometres up.

This shot, taken moments later with a longer focal length lens, grabs the waning Moon shining behind the distant wind machines, and beneath the arc of auroral curtains.

In all, I shot 50 gigabytes of raw images, both still images and frames for time-lapse movies. I’ve assembled most of them into a musical collage that honours the night. In the final sequence of the movie, it almost looks like the wind machine is facing into the brunt of the solar wind, as pulses of aurora surge from out of the east toward the turbine towering overhead.

The music is by a new favourite artist of mine, the Italian composer Ludovico Einaudi. His latest album of alt-classical/new age music is called “In a Time Lapse.” How could you not like that?! Buy it on iTunes. It’s stunning.

I hope you got to see the Night of the Northern Lights in person. If not, I trust these images and movies give you a sense of the wonder of what the solar wind can do.

June 28, 2013

Coal Dust Stars

The timeless stars turn above a long-abandoned coal mine near East Coulee, Alberta.

For decades, between 1912 and 1979, homes and trains were fueled by coal from the Atlas Coal Mine, one of many in the river valley near Drumheller, Alberta.

Thousands of mine workers populated the boom towns set in the badlands of the Red Deer River. The mines and most of the people are long gone. The Atlas Coal Mine was the last to close, holding out well into the current age of natural gas for home heating and diesel for the trains.

It’s the only mine with buildings that still exist, now as a tourist attraction with daily tours of the mine, both above and below ground.

I spent the evening there last night, the only visitor, except for the owls and coyotes. I was shooting time-lapse sequences and some stills. The shot above is a composite of twenty 1-minute exposures to create the star trails.

For those who prefer a more realistic scene, the short-exposure image above captures the sky more as the eye saw it, with Arcturus and the stars of the Big Dipper shining above the massive wooden tipple.

The Drumheller area is rich in history and photo ops, both for day and night shooting.

June 27, 2013

Night of the Noctilucent Clouds

It was a beautiful summer evening, with stars wheeling overhead in a moonlit sky and the only clouds far away and interesting.

This was one of those nights we get once or twice a summer when the much-anticipated noctilucent clouds – the clouds of summer – put on a perfect show. In my previous post I featured an image from early in the night, last night, June 26, 2013.

These are images and time-lapse movies from later in the night. The composite image above shows stars trailing over 90 minutes with the brilliant noctilucent clouds on the horizon, and fringed by a rosy glow of red twilight where the southern edge of the cloud display, which sits over the Northwest Territories, is being lit by a setting Sun with red sunlight filtering through our atmosphere as it passes over the North Pole.

This telephoto lens shot above captures a close-up of the rosy-fringed noctilucent clouds, behind a lightning-lit thunderstorm rolling through storm alley in central Alberta. The storms can stay there! We’ve had enough of them for a while!

My time-lapse sequence extends over about 90 minutes and opens with a wide-angle view of the display as it appeared low on the horizon. What follows are two closeup views that really show the intricate wave-like motion of these high-altitude mesospheric clouds, and their changing lighting and colours.

These are beautiful clouds drifting on the edge of space but it takes time-lapse to reveal their fluid-like motion.

June 27, 2013

Thunderstorm and Noctilucent Clouds

Two very different forms of clouds drift along the horizon: a thunderstorm nearby and low, and noctilucent clouds far away and high.

This was the scene last night, as another thunderstorm to the north of me rolled along the horizon drifting away to the east. A bolt of lightning illuminates the storm clouds. The thunderstorm was over central Alberta, and at the bottom of our atmosphere, in the troposphere.

Meanwhile, in the background, a beautiful display of noctilucent clouds crept along the horizon in the other direction, drifting to the west. These clouds were over the Northwest Territories, a thousand or more kilometres away to the north and 80 to 100 kilometres high, at the top of the atmosphere in the mesosphere.

The NLC display lasted all night, or for at least as long as I was able to stay up and shoot.

This is a telephoto lens shot that zooms into the brightest part of the NLC display.

June 26, 2013June 26, 2013

Thunderstorm in the Moonlight

A thunderstorm rolls across the northern horizon with the stars of Cassiopeia and Andromeda rising.

This was a perfect night for storm shooting. The storm was far enough away to not engulf me in rain and wind, but close enough to show detail and reveal its bolts of lightning. A waning gibbous Moon shone in the south lighting up the storm clouds to the north and turning the sky blue.

Meanwhile the stars of Cassiopeia, Perseus and Andromeda were rising behind the storm clouds, a nice contrast of Earth and sky.

I’ve been after a confluence of circumstances like this for a few years. An aurora to the northeast would have been nice as well. But you can’t have everything!

June 22, 2013

The Rising of a “Supermoon”

Here is the much hyped Supermoon of 2013 rising into a twilight sky on the wet Alberta prairies.

A clear night for a change, with no storms about. Though one rolled through earlier today. We don’t need any more rain! Thankfully I am high and dry on the Alberta prairie but many friends to the west are not so lucky and have been flooded out, evacuated or have been camping in their homes with power and heat off. Calgary has largely come to a standstill, with the main pastime being watching the rivers rise and fall.

Tonight, after two days of destruction from horrific floods, at least we in southern Alberta were able to enjoy a clear night and the sight of the wonderful solstice Moon rising. This is the closest Full Moon of 2013 and has received an inordinate amount of PR as the “supermoon.”

It certainly did look fine tonight, though in truth no one could ever tell the difference between this “supermoon” and any normal Full Moon.

But perhaps this one is a little special, reminding us that the sky brings beauty as well as destruction.

June 21, 2013

Summer Solstice Panorama on the Prairie

This is the prairie night sky taken at the moment of summer solstice.

I shot this 360° panorama in the field near my house just before midnight on June 20, 2013, right about the official time of summer solstice. This is the longest night of the year and the brightest. The presence of the gibbous Moon contributes most of the night light, but there to the north at left you can see the glow of twilight and an aurora. At right, the waxing Moon shines in clouds, surrounded by a faint halo from ice crystals in the clouds.

Nights around solstice are always bright and filled with wonderful colours and atmospheric phenomena.

The tranquility of the solstice scene is in contrast with the horrific weather disaster taking place west of me near the mountains, as record floods from torrential rains wash away roads, railway lines, and houses. Roads are closed in and out of the mountains and entire neighbourhoods of Calgary near rivers are being evacuated.

Everyone knows somebody who is affected. For many this is indeed a very long and stressful night. I hope everyone keeps safe.

June 18, 2013

A Retreating Prairie Storm

A stunning storm cloud retreats across the prairies leaving clear skies in its wake.

The timing could not have been better. On Monday night, June 17, a thunderstorm retreated to the east at just the perfect time to catch the light of the setting Sun.

As these prairie storms often do, this one left behind clear skies, with a quarter Moon at right to the south and the Sun to the west, off frame but illuminating this amazingly sculpted cloud. Downdrafts in the thunderhead produced the mammatus clouds – the bulbous structures hanging from the thundercloud. The low Sun angle emphasizes their form.

We’ve had a lot of rain and storms lately, but when a storm puts on as fine a show as this one, I’ll take it!

This image is a 3-segment panorama using the Canon 5D MkII and 16-35mm lens at 16mm. I used Photoshop’s Photomerge and Adaptive Wide Angle filter to stitch and straighten the image.

June 14, 2013

The Milky Way at Solstice

The centre of the Galaxy culminates over a starlit landscape on a night near the summer solstice.

This was last weekend, on the same night I took the images of the aurora and noctilucent clouds featured in the previous two blog posts. But toward the end of the shoot, I turned south to capture this scene, of the Milky Way over a grassy prairie field.

The landscape is lit only by starlight and by the glow of twilight and aurora to the north.

In the sky, the constellations of Scorpius and Sagittarius are peaking as high as they get for me in southern Alberta. The red giant star Antares is to the right while the bright star clouds toward the centre of our Galaxy are just left of centre. The sky is not dark because of the glow of perpetual twilight at this time of year near solstice.

Deep sky fans will note that the star cluster M7, the southernmost Messier object, is just clearing the horizon.

Remarkably, this is a mere 15 second exposure, at ISO 1600 but with the 24mm lens wide open at f/1.4. Normally I wouldn’t shoot at that wide an aperture as the images look too distorted at the corners of the frame. But for this shot I used the Canon 60Da camera – its cropped-frame sensor records only the central area of what the lens projects so it crops out the nasty stuff at the corners of the frame that would certainly have been detracting had I used the full-frame camera.

But shooting at f/1.4 allowed even this quickie 15-second shot to grab lots of detail in the Milky Way.

June 10, 2013June 10, 2013

Time-Lapse: Northern Lights and Noctilucent Clouds

What strange clouds these are, moving where there shouldn’t be winds, and forming where there’s barely any air.

These are noctilucent clouds, sometimes called polar mesospheric clouds. Their icy strands form around particles at the top of the atmosphere some 80 km up. There’s almost no air up there so just how these clouds form has always been a mystery. They may be condensing around meteoric dust particles. They may also be more common now than in past decades and centuries, as the upper atmosphere cools due to an odd quirk of global warming that sees the lower troposphere warm while the upper mesosphere cools.

This was the first display of NLCs I’ve seen so far this season. They can only be seen, and indeed they only form, in summer. Sunlight streams over the pole and lights these clouds all night long. They are literally “night-shining” clouds. Only from a latitude range of 45° to 60° north and around summer solstice is the geometry right to see the clouds, usually as electric blue cirrus strands moving slowly along the northern horizon.

The time-lapse movies capture their motion over 30 to 90 minutes of shooting.

The 40-second movie contains three clips:

• The first, a wide-angle view of the amazing aurora that danced in fast accompaniment to the slow noctilucent clouds.

• The second clip, very short, zooms in a little more to the northern horizon. However, I cut that sequence short so I could switch lenses and take the next clip.

• The third scene is with a telephoto lens, framing the east-to-west slow motion of the clouds. I took 4-second exposures at 1-second intervals so it shows some pretty fine motion.

This was certainly one of the best NLC displays I’d seen and my best shot at capturing them.

What was especially rare was seeing them accompanied by auroral curtains actually moving among the clouds (or so it appeared). Both are up high in the near vacuum of near space, but they may have been miles apart in latitude.

June 10, 2013June 10, 2013

Northern Lights & Noctilucent Clouds

Colourful sky phenomena combine to provide a remarkable sky show.

What a night this was! On Sunday, June 9 the aurora kicked off with a burst in the bright twilight but really got going as the sky got dark, shooting beams of magenta and blue up from the main green arc.

Then on cue, streamers of noctilucent clouds appeared low in the north, shining with their characteristic electric blue. These are odd clouds at the edge of space lit by sunlight streaming over the Pole.

Both these apparitions of the upper atmosphere glowed above a horizon rimmed with the orange of perpetual twilight set in a deep blue background sky.

Yes, the camera has brought out the colours more intensely than the eye saw, but nevertheless it was a remarkable evening close to solstice. This is a magical time of year when all kinds of sky glows light the night.

This night the European Einstein ATV cargo craft also flew over, twice, each time about 10 minutes ahead of the even brighter Space Station that it is chasing for a docking later this week.

More images to come from this night, including time-lapses of the Lights and Clouds.

June 8, 2013June 9, 2013

The Colour of Dark

What colour is the dark night sky? Depending on conditions, it can be any colour you want.

I shot this 360° panorama last night from my backyard under what looked like a clear and fairly dark, moonless sky. Looks can certainly be deceiving. The camera picked up all kinds of colours the eye couldn’t see.

Let’s review what’s causing the colours:

• To the north just left of centre the horizon is rimmed with a bright yellow glow from all-night perpetual twilight present around summer solstice at my mid-northern latitude.

• Above that shines a green and magenta band from a low-level aurora just visible to the naked eye.

• Much of the sky is tinted with bands of green from ever-present airglow, caused by oxygen atoms at the top of the atmosphere giving off at night some of the energy they absorbed by day. I had thought the sky would look blue from the perpetual twilight but the airglow seems to overwhelm that.

• Yellow glows around the horizon at left (west) and right (southeast) are from urban light pollution from towns 50 km away.

• Some strands of remaining cloud from a departing thunderstorm add streams of brown as they reflect lights from below.

• Finally, the Milky Way shows up in shades of yellow and pale blue, punctuated here and there by red patches of glowing hydrogen hundreds of light years away.

The only thing missing this night was a display of electric blue noctilucent clouds.

The sources of most of these colours are an anathema to observers of faint deep-sky objects. Aurora, airglow and certainly light pollution just get in the way and hide the light from the distant deep sky.

A word on technique:
I shot this panorama using an 8mm fish-lens to shoot 8 segments at 45° spacings. I used the excellent software PTGui to stitch the segments together, which it did seamlessly and flawlessly. Each segment was an untracked 1 minute exposure at ISO 3200 and f/3.5. The panorama covers 360° horizontally and nearly 180° vertically, from the ground below to the zenith above. It takes in everything except the tripod and me!

– Alan, June 8, 2013 / © Alan Dyer

June 5, 2013

All-Night Satellites

It was a marvellous night for Space Station watching.

Right now those of us at northern latitudes in North America are enjoying the opportunity to see the International Space Station come over not once but often 2 or 3 times a night, as it is now lit by the Sun all night long (on our nights down here on Earth, that is).

Here are two shots from the night of June 4-5, 2013 taken from my home in Alberta at a latitude of 51° North.

My featured image above is from the ISS pass that began at 1:55 am, and is a stack of 4 tracked 2.5-minute exposures, so the stars are not trailed, but the ground is! On this pass, the ISS came overhead. This view is looking north, toward the all-night perpetual twilight we see on the Canadian Prairies around summer solstice. There’s also a low band of green aurora on the northern horizon.

I shot the image below on the ISS’s pass one orbit earlier at 12:18 am. This image is looking south to the ISS’s high pass across the south. It’s a composite of 4 untracked 2-minute exposures – thus the stars are now trailing in circles around Polaris at the top of the frame.

Both shots are horizon-to-horizon all-sky views with an 8mm fish-eye lens.

The sky isn’t dark, even in the shot taken at 2 am. At this time of year around summer solstice at northern latitudes, the sky never gets astronomically dark but is lit a deep blue by sunlight still streaming over the pole and bathing the night in a glow of perpetual twilight.

June 1, 2013June 1, 2013

Time-Lapse Techniques — Creating Star Trails

The stars wheel above the Cretaceous-age sediments of Dinosaur Provincial Park.

One of the most powerful techniques in the nightscape photographer’s arsenal is to stack lots of short-exposure images together to create the equivalent of one long exposure showing the motion of the stars. A creative tool to do this in Photoshop is the “Advanced Stacking Actions” from Steven Christenson who maintains a blog and eStore called Star Circle Academy.

I used one of his Actions to create the feature image above. Unlike more run-of-the-mill stacking procedures, Christenson’s nifty Actions can create star trails that look like comets or streaks fading off into the sky at their tail end. It’s a clever bit of Photoshop work achieved by stacking each successive image at slightly lower opacity.

You can use his Actions to create a single composite still image, as above, or to create a set of “intermediate” frames that can be turned into a time-lapse movie with stars turning across the sky and drawing trails behind them. My movie shows several variations. Click the Expand button on the movie to have it fill the screen and reveal the sub-titles.

In Clip #1 I stacked the original set of 360 images without any trailing, using the original frames that came from the camera, albeit with each frame processed to enhance contrast and colour.

In Clip #2 I stacked the images using the “Comet Trails” Action, one that produces very short comet-like streaks.

In Clip #3 I used the “Long Streak” Action to produce longer star trails, but the process also creates unusual cloud streaks as well. Rather neat.

In Clip #4 I used the more conventional “Lighten Mode” to create trails that accumulate over the entire sequence and never fade out. The result on this night was pretty wild and excessive, with the twilight and moonlight adding other-worldly colours.

I certainly recommend the Star Circle Academy Photoshop Actions. While there is a basic Test Set available for free, the full Advanced set is well worth the $30.

May 29, 2013May 30, 2013

Moonlight on the Hoodoos

The stars shine in a bright moonlit sky over the Alberta Badlands.

My feature image above is one of several still frames I took at the end of 4-hour photo shoot last Sunday at Dinosaur Provincial Park. The nearly Full Moon provides the illumination on an eroded landscape originally cut by water from retreating ice age glaciers.

But the volcanic ash layers hold treasures much older, from 70 million years ago. This area contains the world’s richest collection of late Cretaceous fossils of dinosaurs and other flora and fauna from near the end of the dinosaurs’ reign.

The movie below is a 300-frame time lapse of the stars turning behind the hoodoos. It’s a dolly shot, using the Dynamic Perception Stage Zero rail and controller.

The system works very well, but such shots demand a site with a suitable immediate foreground, as well as a good view to the distant sky. It is the parallax motion between foreground and background that makes a dolly move interesting.

I planned this shot to begin at twilight and continue as the sky was darkening, then into the rest of the night with the Moon rising and lighting up the landscape. The moving clouds were perfectly timed and placed!

May 28, 2013

Moonrise on the Badlands

It was a marvellous night for a moonrise. A beautiful night in the badlands

Last Sunday I headed east to Dinosaur Provincial Park, to catch the planet conjunction early in the evening, and then shoot time-lapse sequences of eroded hoodoos lighting up as the nearly Full Moon rose in the east.

The night could not have been better for moonlight photography. The clouds fanned out perfectly from the cameras’ focal points to the north, and in the time-lapse movies (to come!) they add dramatic motion in front of the rotating northern stars.

The feature image above is one of 300 from a motion-controlled dolly shot. The frame below is one of 380 from a static camera time-lapse.

I shot both from a favourite spot at the eastern end of the Badlands Loop drive. As I arrived at sunset, the last of the day-use folks were leaving and I had the place to myself. There was no wind, no humidity, few bugs, mild temperatures and the solace of absolute quiet broken only by some passing geese and the occasional chorus of coyotes.

Even if the images had not turned out it would have been worth the trip.

May 26, 2013May 26, 2013

Aurora at the Observatory

A low aurora appears in the city skyglow and bright moonlight at the local observatory.

After several days of rain, skies cleared beautifully for a Saturday night star party for the public at the local university observatory, the Rothney Astrophysical Observatory, southwest of Calgary.

The evening was capped off by the appearance, as expected, of an auroral arc to the north. Despite the light from the nearly Full Moon and urban sky glow to the north, the aurora managed to compete and put on a show for a few minutes before fading.

About 100 people attended the evening, and were treated to views of Saturn, shining in the south near Spica. Unfortunately, clouds to the west over the mountains never cleared away enough to allow us views, and me photos, of the triple-planet conjunction of Mercury, Venus and Jupiter. Still, a good time was had by all.

May 22, 2013

Time-Lapse Techniques — A Dolly Shot

Time-lapse shooting has become immensely popular of late, but there’s nothing like a dolly shot to add interest to a scene .

Among the more advanced techniques for shooting time-lapse movies is to place the camera on a motorized track for a cinematic “dolly” shot.

These are easy to do in the daytime as the camera simply needs to slide down a rail at a constant rate. But at night, time-lapse dolly shots become more complex. Exposures are often 15 to 60 seconds even in bright moonlight, as here. During each exposure the camera shouldn’t move. The slide down the track should happen only in the brief time between exposures, typically 2 to 5 seconds.

Accomplishing this “shoot-move-shoot” routine requires a specialized bit of kit. In my case, I use the Stage Zero dolly and MX2 controller from Dynamic Perception.

It works great, and sends the camera down the 6-foot rail at a speed you determine. The controller also operates the camera shutter, ensuring sync between the exposures and dolly motion. You can see the setup in operation below, in a 2-part movie. The first scene shows the dolly and camera in operation over the 2-hour shoot, while the second clip shows the time-lapse sequence the dolly-mounted camera took.

This was one of the easiest time-lapse sequences I’ve shot, as I had to travel no more than 100 feet from my house to do it.

I was after a couple of sequences just to use for demo purposes, and didn’t want to tackle a long shoot far from home on a weeknight.

The bright moonlight on May 20 also meant exposures could be short, so that collecting the 300 frames I typically shoot for a time-lapse could be accomplished in well under 2 hours. Getting to bed before 1 am is a rare treat on a time-lapse night!

May 20, 2013

Aurora All-Night

The Northern Lights dance through the night, ending with a finale burst of blue.

Here’s the time-lapse movie, below, that I shot Friday, May 17, beginning at 11:30 pm and ending 4 hours later at 3:30 am. The sky was bright with moonlight when I started the sequence, with the aurora especially active over half the sky. The display settled down to form a slowly pulsing green band behind the old barn, which went into silhouette after the Moon set.

Then, just as the sky was brightening with the first glow of dawn, the aurora kicked up its heels again and danced across the north, shooting beams of blue across the sky.

I ended the sequence as dawn was fading in … and I was fading out! Still, it was a wonderful night to be out under the stars.

The movie compresses 4 hours of aurora shooting into 40 seconds of aurora playback!

I assembled the time-lapse movie from 1200 frames, each 11-second exposures at 1 second intervals, with the Canon 60Da at ISO 1600 and 10-22mm lens at f/4.

May 19, 2013May 19, 2013

Old Barn By Aurora Light

As the Northern Lights dance they light up an old barn on a moonlit night.

The still frame above is from the movie down below, a 3-hour-long time-lapse taken on May 17, the night of the big aurora display. I shot this with a camera riding along on a motorized dolly track, to provide the panning motion to the scene.

You can see the rig in this image just below, which I took with another camera framing the entire scene.

Aurora over Old Barn #1 (May 17-18, 2013)

Using the second camera, I was intending to take shots showing a motion-control time-lapse sequence being taken, for illustration in talks and publications.

The aurora quickly forced me to change plans with camera #2. But I let the main motion-control camera continue down its track for the rest of the night, resulting in the movie below. At one point in the movie I briefly appear at right, as I moved the second camera to the south side of the barn to look north to the main area of the display.

In the movie, the stars of Virgo and the planet Saturn rise into a sky lit blue by moonlight early in the evening. As the Moon sets, the shadows rise and engulf the barn.

While catching stars rising behind the rustic old building was the original intention of the shot, the Northern Lights added a bonus. Not only do they dance in the sky behind the barn, but the north face of the old grey barn, in shadow from the moonlight, lights up green from the glow of aurora shining in the north.

Very nice. It certainly made for a colourful scene under the skies of southern Alberta.

– Alan, May 19, 2013 / © 2103 Alan Dyer

May 18, 2013May 18, 2013

Night of the Northern Lights – #3

The memorable night of Northern Lights ended with a final outburst sending blue curtains into the dawn twilight.

This is a frame from May 17-18, taken near the end of my time-lapse sequence, when the aurora kicked up again in intensity and shot towering blue curtains into the northern sky. The pink glow of dawn tinges the northeastern sky, bookending the sequence of 1200 frames and 27 gigabytes of images. Good thing I had a large capacity memory card!

Each shot was 11 seconds at ISO 1600 to try to freeze the moving curtains while still maintaining a good level of exposure.

Here, lights from a passing car at 3 a.m. illuminated the old barn.

As a postscript, I also note that this was my 300th blog post since beginning The Amazing Sky in February 2011. I hope you’ve enjoyed the views of the sky I’ve been able to publish over the last two years.

May 18, 2013

Night of the Northern Lights – #2

You know you are in for a good night when the aurora appears even before the sky gets dark.

I shot this in the evening twilight, as the curtains of Northern Lights began their dance in the dusk. Light from the quarter Moon also illuminates the scene. It was a mad rush to get the camera set and aimed to begin shooting. I was also looking after another camera that was shooting a dolly-shot time-lapse of the barn.

For this image I used the Canon 60Da and Canon 10-22mm lens at the widest setting. Even that was not enough to take in the whole of the display that was covering the sky.

May 18, 2013May 18, 2013

Night of the Northern Lights – #1

What a night this was, with a display of Northern Lights dancing across the sky as soon as it got dark. They danced all night.

I set up May 17 at my neighbourhood rustic farmstead for a night of time-lapse shooting of the old barn in the moonlight, but knowing an aurora was likely. My iPad app beeped and alerted me to that possibility only an hour or so before sunset, letting me know a storm was underway. And sure enough, as soon as it got dark, there were the curtains of green dancing all over the blue twilight sky. This frame is from 1200 I shot in a dusk to dawn time-lapse movie. It is from early in evening, with a pink glow of twilight still fringing the northwest horizon.

What marked this display was the blue and purple curtains, with those colours only really apparent in the camera images. I think those tints come from sunlight hitting the auroral curtains high in the atmosphere where the Sun is still shining. At this time of year the high atmosphere never gets dark and is always lit by sunlight streaming over the pole.

More images to come!

May 9, 2013May 9, 2013

Scorpius Rising on the Prairies

Scorpius and the star clouds of the Milky Way skim along the southern horizon on the western Canadian prairie.

Scorpius crawls along the horizon at right, with dark lanes of dust converging onto yellowish Antares. Just left of centre a dark horse prances above the treetops. At lower left shines the pink Lagoon Nebula.

With its intricate mix of dark dust lanes and bright star clouds this is the richest region of the Milky Way. It marks the direction toward the centre of our Galaxy. Pity it lies so low in our sky from here in western Canada, at a latitude of 50° North. Compare this view to what I saw two months ago from New Mexico and you can see the advantage of a southerly latitude for any lovers of the Milky Way.

However, I was lucky to get this shot, taken last weekend during the only decent time of the year when I can see Scorpius in a dark sky from my prairie home. The night was very clear, allowing a clean shot to the southern horizon.

May 8, 2013

Milky Way and the Northern Lights

The Milky Way appears from behind the colourful curtains of the Northern Lights.

This was the scene last Saturday night, into the pre-dawn hours of Sunday morning, May 5, as the summer Milky Way rose in the east while a display of aurora played across the northern sky. The Northern Lights weren’t particularly bright this night, but the long 2-minute exposure I used to bring out the Milly Way recorded the aurora with colours and an intensity only the camera could see this night.

The green is from oxygen glowing in the lower part of the atmosphere, though still some 80 km up, where only rockets and high-altitude balloons can fly. The tops of the auroral curtains are tinged with the pinks from another type of oxygen emission possible only at the very top of our atmosphere, where molecules are few and far between and what’s left of the air that surrounds us meets the vacuum of space some 150 km up.

From Earth it’s hard to visualize just what we are seeing when we look at display like this. But check out some of the Aurora videos at NASA’s Gateway to Astronaut Photography of Earth. You’ll see time-lapse videos taken from the Space Station as it flies by and through the same types of aurorae with green lower bands and pink upper fringes, beautifully captured floating high above the Earth in vertical curtains reaching up into the blackness of space.

May 6, 2013May 6, 2013

The Milky Way of Spring on the Prairies

Late on a clear spring night on the Canadian Prairies the Milky Way rises over a fallow field.

Despite taking this not 200 feet from my home, this isn’t a view I see or photograph very often. In spring on the Canadian Prairies, it seems we go from dark winter nights to the bright skies of mid-summer with little in between to mark spring. Miss a dark-of-the-Moon period in late April or early May and you miss the opportunity to see and shoot this sight – the summer Milky Way rising late on a dark spring night, with Scorpius due south. In another month this same sky will be washed out by the glow of perpetual twilight around solstice.

By July or August when dark skies return, the Milky Way will be already well up at nightfall, and Scorpius on the way down past his prime for the year.

But in this shot, taken at 3 am this morning, during a welcome run of clear moonless nights, I framed Scorpius at lower right skimming the southern horizon as high as he gets from western Canada. The yellow star at lower right is Antares, the heart of the Scorpion. To the left of Scorpius, the spectacular starclouds of the summer Milky Way span the sky from Sagittarius in the southeast to Cygnus high in the east at upper left.

Around me now, farmers are beginning their work of tilling and seeding the fields. But this one will likely lay fallow this year, the furrows seeming to extend off into the distant Milky Way.

This is a stack of five 2.5-minute tracked exposures, but with the ground included from just one of the exposures, to minimize the blurring introduced by the moving camera. The lens was the wonderful 14mm Samyang, a manual lens that doesn’t register in the camera’s metadata, thus the reading at left that this was taken with a 50mm lens, the default setting when the camera doesn’t know what optics it is connected to.

April 26, 2013

Piercing the Night

All things must pass. A bit of billion-year-old comet dust disintegrates above a decaying pioneer farm.

This was a lucky shot to be sure. Last night I returned to my favourite farmstead site to shoot a time-lapse sequence of the stars turning over the moonlit rustic buildings. I started shooting some test frames to get the settings right — the camera was on a motorized dolly to move it along a track for the next three hours, so you want to make sure you have all the settings right. I opened the shutter to start a test series, and whoosh! A bright meteor appeared. Right on time and in frame. That doesn’t happen very often!

However, shooting hundreds of shots for a time-lapse sequence, now a common practice among astrophotographers, does boost your chances of picking up a bright meteor on one of the frames. But having it appear nicely framed is often too much to ask. I was lucky. But … I was out with a camera aimed at the sky, and for getting good shots that’s the first requirement!

April 23, 2013

Returning to the Earth

The works of man crumble and return to the Earth under the timeless turning of the stars.

OK, a bit of purply prose I suppose, but I think the photo turned out rather neat. This is a favourite spot of mine, at a decaying old farmyard down the road from where I live.

It’s one of many such homesteads in the area, built by the CPR railway on land they were granted as part of their enticement to build “the National Dream” rail line across Canada in the 1880s. The CPR then built houses for the pioneer settlers who came by rail to be dropped off across the Prairies, often with little more in hand than a shovel and a sack of potatoes to get them going. Eventually, the railway would make money shipping the pioneers’ wheat and cattle out.

This old homestead was once part of a community in the area called Ouletteville, a town I assume settled by French Canadians or immigrants from France, but long since gone except for its cemetery up the road.

Now, as the house and farm buildings crumble back to dust, they make great subjects for a little low-effort nightscape shooting, especially when trying out new techniques and gear. I don’t have to invest a lot of time travelling, yet the place is photogenic enough to yield some nice shots.

This night I was testing some new panorama shooting techniques, using a fish-eye lens to shoot an all-encompassing 360° view. But this shot was one of several I took at the end of the night, using a more conventional 24mm lens. It’s a stack of 4 exposures: one short 50-second shot at ISO 800 for the initial stars, and then three 10-minute shots at a ISO 100 for the long star trails.

I shot this Monday evening, April 22, on the first decent night in nearly three weeks in what has been an awful spring. At least most of the snow has gone. The waxing gibbous Moon provided the off-camera illumination.

April 17, 2013

Commander Chris Flies Over My House

Commander Chris Hadfield and his crew fly over my house and below the Moon on a spring night in Canada.

It’s been a couple of months since we in Canada have had a chance to sight the Space Station in our evening sky with our Canadian astronaut on board. When I last had a chance in February, Chris was a crew member. Now he’s the commander of the Station, the first Canadian to hold the position.

My shot, taken tonight on the second of two passes this evening, has the Space Station coming up out of the west and rising to meet the Moon. It passed under the Moon and then faded out as it entered Earth’s shadow and nighttime, one of 16 nights they experienced this and every day in orbit around the Earth.

Chris is in orbit with the Expedition 35 crew until mid-May. So this may be our best and last chance to see our astronaut flying through Canadian skies.

This was also the first decently clear night we’ve had in two weeks, since my last post from April 2. We all hope spring is finally arriving

April 2, 2013

Goodbye Winter Sky!

Say goodbye to the winter sky, now sinking fast into the sunset. The departure of Orion and company is an annual sign of spring.

Look west on a clear night in the next couple of weeks and you’ll see this scene, as Orion sinks into the sunset, surrounded by Taurus to the right of him, and Canis Major to the left of him. Taurus is his foe, Canis Major his friend.

Having so many bright stars in the April evening twilight makes for a beautiful scene in the deepening blue. But I suspect most of us are happy to see all signs of winter gone for a long time!

I shot this Monday night, April 1, on a very clear night. Orion’s Belt is just left of centre. The trio of Belt stars points left and down to Sirius, the Dog Star, and points right and up to Aldebaran, the Bull’s Eye. Above Aldebaran is brilliant Jupiter. Just at the right edge of the frame are the Seven Sisters, the Pleiades.

Say goodbye to these stars of winter. We won’t see them again until late summer in the pre-dawn sky.

March 30, 2013March 30, 2013

The Easter Aurora

Here’s a celestial gift for the Easter season – a display of northern lights on Good Friday.

It wasn’t a particularly clear night but in this case the clouds added to the photos. In one direction I was shooting the Northern Lights to the northeast, while to the west at the other end of the yard I was shooting the winter sky setting, plus having a quick look at Comet PANSTARRS. It was certainly a sky filled with attractions.

Happy Easter to all and I hope spring is finally arriving where you live – assuming you are a northerner!

March 20, 2013

The Ghostly Glow of Gegenschein

The band of light at right is the familiar Milky Way. But what’s that faint stream of light to the left? It’s called the Gegenschein.

My last blog showed an image of the Zodiacal Light in the west. In fact, that glow extends up and continues all the way across the sky as a very faint stream of light at the threshold of vision called the Zodiacal Band. But at the place in the sky 180° opposite the Sun the Band intensifies to become a diffuse patch of light. It’s easy to see with the naked eye from a dark site if you know to look for it, and where it is likely to be. Last week, it was sitting below the constellation of Leo, in an area of sky that is pretty blank. So any faint glow stands out.

As with Zodiacal Light, what you are seeing is sunlight reflected off comet and asteroidal dust, but for the Gegenschein (German for “counterglow”) the light is coming from dust opposite the Sun that is scattering light back toward us and the Sun, mirror-like. The back-scattering effect makes the dust appear a little brighter at the point opposite the Sun.

Spring is a good time to spot the Gegenschein (true for the northern or southern hemisphere) as it then lies in a sparse area of sky away from the Milky Way. But you need a moonless sky and a dark site free of manmade light pollution. It and the fainter Zodiacal Band are among the sky’s most subtle sights. Again, Atmospheric Optics has more details.

A bonus with this shot are some short streaks of light below and to the right of the Gegenschein. I think those are from geostationary satellites flaring at the anti-solar point as they, too, acted as mirrors briefly catching the sunlight. Being geostationary – likely communications satellites you aimed fixed dishes at – they stayed still while the stars and tracking camera moved, and so created streaks.

March 19, 2013

The Zodiacal Light from the Desert

From a dark site the glow of Zodiacal Light rivals the Milky Way in brightness.

This was the scene every night last week in the evening sky from our New Mexico observing site. The vertical glow of Zodiacal Light was a source of natural light pollution brightening the western sky. I’ve never see it more obvious in the west and this was the perfect season to see it. In March from the northern hemisphere the ecliptic – the plane of the solar system – is angled high into the western sky, almost vertical from the latitude of southern New Mexico.

The Zodiacal Light lies not in our atmosphere but comes from interplanetary space, and follows the ecliptic. What we were seeing was a glow of sunlight being reflected off fine dust particles orbiting the Sun in the inner solar system, likely spread by passing comets like PANSTARRS. I blogged about the Zodiacal Light last month, in photo taken from home in southern Alberta. You can also read about it at the excellent Atmospheric Optics website.

You don’t need to be in the desert to see it, but you do need dark skies. And no Moon in the sky.

At last week’s dark of the Moon period, Jupiter sat at the apex of the Zodiacal Light, just above the Pleiades star cluster. Near the top, right of centre, you can also see a short satellite trail, likely from a flaring Iridium satellite.

March 17, 2013

Comet PANSTARRS Over the VLA

Comet PANSTARRS hovers in the twilight above the many moonlit dishes of the VLA radio telescope.

I shot this earlier this evening, on Sunday, March 17, on an evening trek out to the VLA (Very Large Array) near Socorro, New Mexico. Light from the nearly quarter Moon high in the sky illuminates the landscape and rims the 27 dishes of the VLA, the radio telescope that has starred in many movies over the years. The comet appears in deep twilight, here with the colours accentuated. Fortunately, the array was arranged in its most compact formation – at times the dishes can be spread out over many miles.

For this shot I took two exposures moments apart: one tracked for 25 seconds for the sky and comet to ensure pinpoint stars, and one untracked for 50 seconds for the ground, to ensure sharp ground detail. I combined them in Photoshop. I used the iPad app Photographer’s Ephemeris to seek out the location, on Highway 52, the public highway leading to the entrance road for the VLA. Lights from cars on the main Highway 60 across the high Plains of San Agustin streak at right.

The comet is becoming more photogenic as it climbs higher, despite the waxing Moon. A classic curving dust tail is now obvious in photos, though here I had the advantage of a very clear sky at a high altitude desert site. Viewing condition don’t get any better than this. Still, this comet will bear watching and shooting over the next month, no matter where you are in the northern hemisphere.

March 16, 2013

The Magnificent Milky Way

What an amazing area of sky – the centre of the Galaxy hovering over the Earth below.

This was the scene two mornings ago, on our last clear night in New Mexico. This is what’s in the morning sky now and in the evening sky later in July and August. This is the area around Scorpius and Sagittarius and their rich star clouds toward the centre of the Milky Way.

It looks like a scene from an alien planet. But it’s here on Earth, gazing thousands of lights years toward the galactic core.

Enjoy!

March 14, 2013

The Arch of the Milky Way

On March evenings the Milky Way arches overhead in a magnificent river of starlight.

This is the panoramic view we are getting every night this week at our astronomy retreat in New Mexico, as we gaze upwards to the northern winter Milky Way running across the sky from northwest to southeast, from Cassiopeia at right to Vela at left.

In the middle you can see the stars of Orion and his familiar Belt.

On March nights we are gazing outward, to objects farther out than we are from the centre of our Galaxy. This part of the Milky Way is dominated by stars and nebulas around the Orion complex several hundred light years away.

Above the main house a pillar of light rises from the western horizon and tapers out as it reaches the Milky Way high in the west. That’s the Zodiacal Light caused by sunlight reflecting off comet dust in the inner solar system. You need to be at a fairly dark site to see it, with no prominent urban sky glows to the west. But springtime is the best season for seeing the Zodiacal Light in the evening sky. From the latitude of New Mexico the Zodiacal Light rises almost straight up, perpendicular to the horizon. Here, Jupiter sits at the apex of the Zodiacal Light.

So this panorama includes the Earth, objects in our solar system (Jupiter and comet dust), and the distant stars and nebulas of the Milky Way Galaxy we live in.

For this scene I shot a panorama of 4 segments, each consisting of 2 images stacked for noise smoothing, and the segments stitched with Photoshop. Each frame was a 3-minute exposure with the Samyang 14mm lens at f/2.8. The camera was on a tracking platform, so it followed the sky during the 25 minutes or so it took for me to shoot the entire panorama. I reframed the camera between each segment to try to get the horizon and landscape horizontal and lined up as best I could from segment to segment.

The ground is from one frame out of each segment and is blurred slightly because the camera was tracking the sky. Despite shooting a moving target, Photoshop was still able to automatically assemble the frames into a seamless panorama that, in this case, covers about 250°. This was the first time I attempted such a tracked panorama. I was impressed that it worked!

March 13, 2013

A Comet and Earthlit Moon Amid the Stars

This was the scene tonight, March 13, as Comet PANSTARRS set over the mountains in deep twilight, with the waxing Moon hanging overhead.

The small comet sits low in the orange glow of twilight, where the Moon was last night when it was down beside the comet. Tonight, a day later, the Moon appeared much higher in the sky as it waxes toward first quarter Moon in another few days. Tonight it was a crescent with most of the dark part of the lunar disk lit by Earthshine. I took this shot just before the comet set behind the mountains, to get the sky as dark as possible and the exposure longer to bring out some stars in the deepening blue of twilight.

I took this from the Painted Pony Resort in New Mexico where about 15 of us are gathered for a week-long star party and dusk to dawn “observathon.”

Indeed, I have to get back outside to continue shooting the Milky Way. It is another stunningly perfect night under New Mexico skies.

March 12, 2013

Sagittarius and Scorpius Rising

This is the view from early this morning as the centre of the Milky Way rises above the desert landscape of New Mexico.

Sagittarius (at centre) and Scorpius (at right) contain the rich starfields of the galactic core. To the eye this scene looks as if bright clouds are moving in to hide the stars, but in fact the glows are stars – clouds of stars forming the glowing bulge of the galactic core. Superimposed on the glowing core are lanes of dark interstellar dust, such as the silhouette of the Dark Horse prancing at centre, with lanes of dust flowing across the sky and converging onto yellow Antares, the heart of Scorpius right of centre.

I shot this before dawn this morning, March 12, from our site in southwest New Mexico. Skies were perfect.

This is a stack of five 5-minute exposures with the 24mm lens at f/2.8. A sixth exposure taken through a diffusion filter added the star glows to accentuate the bright stars and their colours. The foreground is from one exposure and has been processed to bring out the details, here lit only by starlight.

March 11, 2013March 11, 2013

Skies of Enchantment – Summer Milky Way Rising

If you lived here you’d be in astronomy paradise.

This is the summer Milky Way and galactic centre in Sagittarius and Scorpius rising before dawn early this morning. The setting is the Painted Pony Resort in New Mexico, and its adobe lodges.

There’s no more spectacular sight than this in the night sky, other than perhaps an all-sky aurora display. And they don’t get too many of those down here at 31° North in southern New Mexico.

This image is a stack of ten 3-minute exposures for the sky (to smooth out noise) but the ground is from just 2 of those exposures and is blurred because the camera was tracking the sky. Light from walkway lights, plus starlight itself, added just enough illumination to provide details in the foreground.

So to be clear – this is a real scene. The Milky Way has not been pasted onto a separate image of the foreground. However, colour and contrast have been boosted to bring out details your eye would not have seen had you been standing here early this morning in the frosty New Mexico night.

Again, as with my previous image taken earlier in the night, I used the new Samyang 14mm ultra-wide angle lens, at f/2.8. It works very well!

March 11, 2013March 11, 2013

Skies of Enchantment – Winter Milky Way Setting

In the land of enchantment, the winter Milky Way sets over our adobe house.

I’m in New Mexico, enjoying wonderfully clear skies. In the early evening the winter Milky Way runs north and south then turns to set over in the west, as it’s doing here, over the main house at the Painted Pony Resort near Rodeo, in southwest New Mexico.

Jupiter and the stars of Taurus are at upper right, and Orion is just right of centre. Above the house shine Sirius and the stars of Canis Major and Puppis. The area of red in the Milky Way just above the house is the massive Gum Nebula in Vela, an area of sky hidden from us in Canada.

For this image I combined a stack of five 5-minute tracked exposures taken with the Canon 5D MkII at ISO 800 and 14mm Samyang lens wide open at f/2.8. The ground details are from two of the exposures.

This was a fabulous night with more to come this week.

March 2, 2013

The Wide-Angle Winter Sky

Orion and his friends are beginning their descent into the evening sky, signalling the welcome end of winter and the coming of spring.

I shot this last night from home, in a scene similar to some earlier posts, such as Winter Stars Rising. But the difference here is that I’m using a new lens, testing it for the first time. I wasn’t really after a “keeper” shot, but I think this one turned out pretty well!

The lens is the Samyang (aka Rokinon) 14mm f/2.8, an ultra-wide angle lens that sells for a bargain price, a fraction of the cost of name brand 14mm lenses. The reason is that this lens dispenses with all the automatic features and electronic communication and is a classic manual lens, just like we used to recommend people buy for astrophotography in the old film days. For shooting stars you don’t need autofocus or having the aperture stay wide-open until you take the photo. So we’re not missing much employing a no-frills manual lens like the Korean-made Samyang series – they make well-respected 24mm and 35mm lenses as well.

Star images are quite sharp across the very wide field, with very good control over coma at the corners. Stopping the lens down to f/4 does sharpen them up but the lens is perfectly usable at f/2.8, as it is here. The big issue is the extreme amount of vignetting — darkening of the corners of the frame. In star shots, we often have to boost the contrast a lot to make the shot presentable, and that increases the visibility of any vignetting, making the photo look like it was taken through a porthole. For this shot I “flattened” the image by applying very generous levels (almost maximum) anti-vignetting both in Adobe Camera Raw (at the start of processing) and again in Photoshop (at the end of processing) with its Lens Correction routine. The final result looks very good and natural I think.

Another drawback to the Samyang manual lenses is that they feed no information to the camera about what lens is attached. The “EXIF” data that the camera records lacks any info on aperture and focal length. So in the photo info at left (which is picked off the image automatically by WordPress), you’ll see the lens listed as a 50mm and with no aperture specified.

So the verdict? The Samyang/Rokinon 14mm is a very nice lens for wide-angle piggyback shooting (like this stack of five 5-minute tracked exposures), and for nightscapes and time-lapse work. A bargain at ~ $360. Recommended!

February 15, 2013

Flying Through a Moonlit Winter Night

Tonight the Space Station flew out of the west and overhead as it faded into the shadow of the Earth.

Because tonight the ISS was coming up high into the north, almost directly overhead, I used a fish-eye lens to shoot the entire sky, and took three exposures, each 90 seconds with the camera tracking the stars.

The bright Moon is at right, but despite its light the Milky Way still shows up. The Space Station faded into sunset just as it crossed the Milky Way.

Canadian astronaut Chris Hadfield is on board, about to take command at the next crew change. He’s been tweeting lots of comments and photos from space. Check him out at @Cmdr_Hadfield.

February 10, 2013

See, That’s the Orion Nebula!

What a hardy bunch we are in Canada, braving winter weather to see Orion and company.

A well-bundled group of sky fans partakes in an impromptu tour of Orion and his famous nebula.

I shot this scene last night, February 9, at the first of a series of monthly stargazing nights at the local university research observatory, the Rothney Astrophysical Observatory. About 120 people and volunteers gathered to take in the sights of the winter sky, as best they could as transient clouds permitted. Inside, speakers presented talks themed to the Chinese New Year, which is governed by the timing of the New Moon each year. As this was a New Moon night, people were able to stargaze under reasonably dark skies to see deep-sky sights such as the Orion Nebula.

Want to know where it is? An astronomy club member points it out rather handily with one of the best tools astronomers have for public outreach, a bright green laser pointer. Controversial and dangerous in the wrong hands, when used responsibly these laser pointers are wonderful for conducting sky tours.

As a side note, this is a 3-second exposure with a new Canon 6D camera at ISO 8000, yet the photo shows very little noise. In just 3 seconds, the Milky Way is beginning to show up! I could have gone to previously unthinkable speeds of ISO 12000+ and still had a presentable shot. This will be a superb camera for nightscapes and available light shots.

February 9, 2013

The Subtle Glow of Comet Dust

Out of the skyglow from lights and the remains of twilight rises a tapering pyramid of light. It’s one of the night sky’s most subtle sights for the naked eye.

This is the Zodiacal Light, and I’ve been trying to capture it in the evening sky from home for a number of years. Last night was a good night for it. The sky was very transparent, for the first couple of hours at least. An ultra-wide angle lens allowed me to capture the Light in context with the wider sky, towering out of the southwest at right, reaching up to the Pleiades and Jupiter high in the centre of the frame. The Milky Way is at left. Everyone knows the Milky Way but the Zodiacal Light is less famous.

It’s visible only in the hour or two after sunset or before sunrise. Late winter and spring are the best times to see it in the evening sky. That’s when the ecliptic – the plane of the solar system where the planets lie – is tipped up at its highest angle above the horizon putting it above obscuring haze. The Zodiacal Light lies along the ecliptic because it is part of our solar system, not in our atmosphere. It is sunlight reflected off dust orbiting in the inner solar system that’s been cast off over thousands of years by comets passing through. It is brightest closest to the Sun and fades out at greater angles away from the Sun. Thus its tapering appearance in my sky as the photo shows, very much as my eye saw it.

It takes a good night at a dark site to see the Zodiacal Light. But take a look at the next dark of the Moon. You’ll be surprised at how easy it is to see once you know what to look for.

February 8, 2013February 9, 2013

A Crisp Winter’s Night Under the Stars

It was crisp and frosty night filled with the bright stars of winter, and the Milky Way.

This was the sky from my backyard on Thursday, February 7, with Orion and his friends shining due south. It is a “fish-eye” shot taking in all of the sky from horizon to horizon. South is at bottom, north to the top. West is at right, east to the left.

The Milky Way runs from northwest, at top right, to southeast, at bottom left. When we look at this section of the Milky Way we are looking in the direction opposite the galactic core, toward the outer arms of our Galaxy.

Jupiter is the brightest “star” in the image, shining in Taurus. Rising out of the sky glow from towns to the west of me is the pillar of light called the Zodiacal Light. I think you can follow it stretching all the way across the sky from right to left (west to east) where it then becomes a subtle bright patch in the sky well east of the Milky Way. That’s the Gegenschein, a glow of light exactly opposite the Sun. It and the Zodiacal Light are caused by sunlight reflecting off comet dust in the inner solar system.

A night when you can see the Zodiacal Light and Gegenschein – they were visible to the unaided eye – is a good night indeed. Too bad this one was spoiled by some cloud and haze, reflecting the toxic yellow glow of ever-intruding sodium vapour lights.

Silhouetted in the sky glow at right is one of my telescopes, with camera #2 dutifully taking a closeup image of Orion’s Belt. That picture will be the subject of tomorrow’s blog!

January 27, 2013February 9, 2013

Winter Sky in Moonlight

Earlier this week I shot a similar scene with the Moon in the photo, when it was near Jupiter. This is the same sky but 5 days later, on January 26, with the Moon now out of the picture, but serving to light up the landscape.

This is the old house on my property that serves as an occasional foreground for test nightscapes. In this case, I was testing my veteran Canon 5D MkII camera against a new Canon 6D. This shot with the 5D MkII had the best arrangement of clouds and stars and works as a decent enough shot on its own.

You can see Orion dodging the clouds, with Sirius at left, and Aldebaran, Jupiter and the Pleiades at upper right.

So what of the tests? Initial impressions are that as far as noise is concerned (always the bane of astrophotographers) the new full-frame Canon 6D improves upon the 5-year old Canon 5D MkII by a factor of two. Noise looks to be about one f-stop better in the 6D, no doubt due to its new Digic V on-board processor.

What this means is:

• Images taken with the 6D at ISO 6400 have a similar level of noise as do images taken at ISO 3200 with the 5D MkII. ISO 3200 images with the 6D look like ISO 1600 images with the 5D MkII, and so on.

• So, if you were happy with shooting at ISO 1600 with the 5D MkII before, you could now shoot at ISO 3200 with the new 6D and get similar results, but with the added benefit of being able to cut your exposure times in half, always a nice thing to do.

• Or conversely, you could continue to shoot with the Canon 6D at ISO 1600 for the same exposure times as before but get shots with much less noise in them. Always a good thing, too!

It’s great to see camera state-of-the-art advancing.

January 21, 2013February 9, 2013

Moon and Jupiter Amid the Winter Stars

The Moon lights up a sparkling snowscape on the night it was close to Jupiter, as Orion and the winter stars rise.

The Moon is the bright and overexposed glow at upper right. Look carefully and you can just make out Jupiter above the Moon, almost lost in its glare. Below shines Orion, with Sirius the Dog Star just coming up above the distant trees. The Pleiades, at top above the Moon, complete this winter sky scene from Monday, January 21, 2013.

I’m glad I didn’t have to go far to shoot it, just 20 feet out the front door. Standing there for just 15 minutes was a chore, with a wicked east wind blowing in -18° C temperatures. This was a night that would normally fall below my threshold of tolerance for winter observing. But with the Moon so close to Jupiter it was worth a little pain for the gain of a neat winter sky portrait.

The image is a composite of a long and short exposure, in order to capture Jupiter so close to the Moon which, in a single long exposure, would have overexposed so much its light would have swamped Jupiter.

January 14, 2013February 9, 2013

Timor Cottage R.I.P.

Word has reached me that my favourite observing site in the world is gone.

Over the weekend, devastating bush fires swept through Warrumbungles National Park and surrounding areas near Coonabarabran, NSW, Australia. Several dozen homes were lost. Some were homes of friends I’ve made there in my many visits to the area in the last 12 years. Among the buildings burned and lost, Timor Cottage, the rental cottage where I stayed in 2010 and in 2012. Previous posts have extolled the virtues of this site. I’m told it is now ashes. Ironically, just last week I confirmed my booking for it, for a stay in early 2014.

Fortunately, all residents were evacuated safely. No one lost a life, just property.

The nearby Siding Spring Observatory managed to survive the fires largely intact, due in no small part to the fire suppression safeguards implemented in the last 10 years since the fires of January 18, 2003 that destroyed Australia’s other major optical astronomy site, the Mt. Stromlo Observatory. Some lessons were learned. However, they did not help the people living near by, many of whom were Observatory employees. It was, and is, a wonderful astronomy community along Timor Road. I wish them the best in their efforts to rebuild their homes and their lives.

It is life in unforgiving Australia — one month paradise, the next hell on Earth.

January 6, 2013February 9, 2013

Winter Stars Rising

Yes, it’s cold out there, but a clear evening away from city lights this week – or this winter – will reward you with the sight of a rising star-filled sky.

This is the winter sky of the northern hemisphere, rising above a snowy prairie landscape, in a shot I took Sunday night, January 6, 2013. The sky is populated by a ream of bright stars and constellations, anchored by Orion, just below centre. You can see his three Belt stars pointing down to Sirius, just peering above the horizon in the glow of a distant town. Orion’s Belt points up to Aldebaran, the V-shaped Hyades star cluster, and bright Jupiter (the brightest object in the scene, above centre), all in Taurus. Above Jupiter is the Pleiades star cluster.

The Milky Way runs down the sky from Auriga to Canis Major. This week, January 6 to 13, is a good week to see the winter Milky Way, as it’s New Moon and the sky is dark.

In this scene the camera was looking southeast about 9 p.m. Sirius has just risen. By midnight the Dog Star shines due south. I used a 15mm wide-angle lens to take in the entire sweep of the winter sky from horizon to zenith. This is a stack of four 4-minute exposures, though the landscape is from just one of the frames, to minimize the blurring caused by the camera tracking the sky. Some clouds moving in add the streaks on either side of the frame. It was a wonderful sky, while it lasted!

And I’m pleased to note that this is my 250th blog post since beginning AmazingSky.net two years ago in early 2011. I hope you have enjoyed the sky tours.

December 31, 2012February 9, 2013

A Truly Amazing Sky — A New Year’s Gift

As we end 2012 and start a new year, I wish everyone a very happy 2013 and leave you with this view of a very amazing sky.

This is a 360° panorama of the Milky Way over Timor Cottage on a very clear night in mid-December in New South Wales, Australia. May all your skies be as wonderful and as inspiring as this in the coming year.

Indeed, we have some potentially remarkable sights to look forward to, with the prospects of two bright comets in 2013: Comet PANSTARRS in March and Comet ISON in November and December.

Let’s hope for more amazing skies in 2013. Keep looking up!

December 16, 2012December 16, 2012

Ultrawide Southern Sky

This horizon-to-horizon image takes in a broad sweep of the southern Milky Way from Orion to the Southern Cross.

At upper left shines bright Jupiter in Taurus and the stars of Orion, upside down. To the right of Orion is Sirius in Canis Major, the brightest star in the night sky. To the right of Sirius above the Milky Way is Canopus, the second brightest star in the night sky and one we don’t see from up north. The two satellite galaxy Magellanic Clouds are at upper right. Below them is the bright Milky Way through Carina and Crux, the Southern Cross. Alpha and Beta Centauri are just above the dark trees at right. This is the entire Milky Way you see on an early austral summer night from down under.

What stands out is the huge red bubble of gas called the Gum Nebula in Vela and Carina. It is strictly a photographic object but shows up well on red-sensitive digital cameras.

I shot this with a filter-modified Canon 5D Mark II camera and a 15mm wide-angle lens on a mount tracking the stars. It is a stack of four 6-minute exposures, shot from Australia a few nights ago under nearly perfect sky conditions.

December 9, 2012December 9, 2012

Australian Sky Panorama

This is the southern hemisphere sky in a 360° panorama.

From left to right in the sky, you can see:

– in the South: the two Magellanic Clouds, satellite galaxies of the Milky Way

– in the West: the diagonal glow of Zodiacal Light

– in the North: Orion, Jupiter and the Pleiades above the outline of Timor Rock

– in the East: the southern Milky Way just rising

I shot this last night in the early evening, Sunday, December 9, from my observing site in Australia, Timor Cottage at Coonabarabran, NSW. It’s a panorama of 8 images, each a 1 minute untracked exposure with the 10-22mm lens at 10mm. I’m amazed at how well the sections join together, considering the stars are moving from one frame to the next and about 16 minutes separates the beginning and end frames.

December 7, 2012December 7, 2012

Catching the Zodiacal Light

From a truly dark sky site, subtle sky glows become obvious. This is the Zodiacal Light of evening.

The Sun has long set and the very last glow of twilight is colouring the sky just above the hills. But reaching up from the sunset point in the northwest is a long triangular glow extending far to the south. This is called the Zodiacal Light – it does not originate in our atmosphere but is from sunlight reflecting off comet dust orbiting the inner solar system in the same plane as Earth’s orbit. Or at least that’s where we see it appearing the brightest, as a glow brightest near the Sun and extending along the ecliptic plane, where we find the constellations of the Zodiac. Here it appears in Capricornus and Aquarius.

I shot this two nights ago, from Coonabarabran, Australia, so the orientation of the Zodiacal Light is different from what we see from the Northern Hemisphere. Here it extends up from left to right. From home in Canada – and you can see the Light from northern latitudes on a dark night – it would be angled up from right to left, a mirror image of what we see here.

The subtle glow of Zodiacal Light is best seen in the evening sky in spring, no matter your hemisphere. I took this on December 6, 2012, still officially spring in the southern hemisphere if you assume southern summer starts on the solstice, December 21. However, Australians say summer begins December 1, so this is a portrait of the Zodiacal Light on a warm summer evening down under.

December 5, 2012December 5, 2012

Cottage Under the Southern Stars

Here’s what heaven on Earth looks like to an amateur astronomer.

It’s a cottage all to myself under some of the darkest skies on Earth, and in the southern hemisphere where all the best stuff is in the sky. This is Timor Cottage near Coonabarabran, NSW, Australia, the self-proclaimed Astronomy Capital of Australia. Near Coona sits Siding Spring Observatory, home to Australia’s largest collection of optical research telescopes. I’m staying nearby, at this cottage under the stars doing my own southern sky explorations.

I was here in December 2010 but had to contend with torrential rains and floods two years ago. As you can see, the weather is much better in 2012!

This is a one minute exposure looking south, toward the most prominent objects in the southern evening sky at this time of year: the two Magellanic Clouds. They look like detached parts of the Milky Way but are separate dwarf galaxies orbiting our Galaxy and in the process of being ripped apart by our Galaxy’s tidal forces.

The red light at left is my other camera taking a shot of the Clouds through a telescope, the subject of my next blog.

It’s a perfect night when the only clouds in the sky are the Magellanic Clouds!

December 2, 2012December 2, 2012

Whitsunday Sunset

This was a perfect sunset for displaying the subtle shades of twilight.

On this evening the sky over the ocean showed off the classic sunset gradient from deep orange though yellow, purple and into deep twilight blue. I shot this on the water on my cruise around the Whitsunday Islands on board the Solway Lass. Note the dark reflections of clouds in the water.

We’re looking west, of course – the Sun still sets in the west in the southern hemisphere! – which is back toward the mainland of Queensland, Australia.

December 2, 2012December 2, 2012

Island Moon At Sunset

One of the great joys of sailing and being out on the water is the wonderful sunsets. In this case, sunset included a fine moonrise.

This is the gibbous Moon of November 26 in the evening sky over the Whitsunday Islands in Australia. On this evening we were moored in Baur Bay, at South Molle Island. The bright waxing Moon shines amid the red clouds in the east still lit by the last rays of the setting Sun from the west. It is everyday scenes like this, painted with the wonderful palette of colours only the sky can provide, that you begin to appreciate all the more – or more to the point, simply see – as you become “sky aware.” So no great science lessons to learn here – just some beautiful colours to soothe the soul as gentle waves lap against the side of the ship.

November 30, 2012November 30, 2012

Sailing Toward Orion

Not so long ago sailors used the Moon, Jupiter and the stars to chart their course on Earth. All are in this moonlit seascape.

I took this shot on November 27, as we set sail toward Hook Passage in the Whitsunday Islands, Queensland, Australia. The ship is the Solway Lass, a 110-year-old sailing ship that is now the oldest commercial ship plying the waters around Australia. It has been modernized and refitted, and at night runs with engines, not sails. And today, of course, GPS keeps the skipper informed of where the ship is. But before GPS and radio navigation, sailors used the sky to determine where on Earth they were.

Sextant sightings of the Sun and stars could give them their latitude and longitude. One star often used was Canopus, visible at far right in this image. Canopus has long been associated with the sea. It is the brightest star in Carina the Keel, once part of the sprawling constellation Argo Navis, the ship in the Greek legend of Jason and the Argonauts. Today, Canopus is still sighted by robot spacecraft bound for the planets to help them determine their position in the solar system.

Sirius and the stars of Orion (lying on his side here at a latitude of 20° South) appear through the rigging. At upper left is the bright glow of the nearly Full Moon, near the star Aldebaran and the Hyades star cluster.

Before the acceptance in the late 1700s of the chronometer as an accurate time-keeping device, the position of the Moon near bright stars served as an astronomical clock in the sky to provide sailors with local time. Another source of time (more for land-based navigators) was the changing positions of the moons of Jupiter — Jupiter is the bright star-like object at left.

I just finished a superb 6 days of sailing around the Whitsundays and will have 2 or 3 more sea-bound posts from this wonderful area of the world.

November 11, 2012

On the Beach — Stargazing

This is stargazing in the tropics — on the beach, in shorts and sandals.

Here’s some of our eclipse chasing group enjoying a view of the southern hemisphere night sky, albeit though clouds. Jupiter is the bright object at left, Orion is rising on his side in the middle, Sirius is just above our stargazers, while Canopus is at far right. The Pleiades is at far left. We’re looking east, from a latitude of 16° south of the equator, where the sky takes on a completely new appearance that baffles and delights even seasoned northern stargazers.

October 15, 2012October 16, 2012

Jupiter Rising

Look east now late at night and you’ll see Jupiter rising amid the stars of Taurus.

I took this shot a week ago from my rural backyard on the last clear night I’ve had. Remarkably, I had bought a new camera – a Canon 60Da – earlier that day and was actually able to try it out. This is the first real shot I took with it. It shows Jupiter amid the horns of Taurus the bull, and below the Pleiades. A faint aurora lights up the northern sky at left.

There have been some superb aurora displays in the last week but clouds just got in the way.

This is my 200th blog post since I began AmazingSky.net in early 2011. I hope you have enjoyed the images and will continue to do so. Thanks for looking!

October 5, 2012May 28, 2013

Moonrise on the Badlands

The Moon rises over a lunar-like landscape on Earth.

Well not quite. The badlands of Dinosaur Park, Alberta may look desolate but they were created by forces the Moon has never seen, namely water erosion. And they are “bad” only because we can’t farm them. But to the deer wandering across the top of the hill – and perhaps gazing at the Moon, too – the badlands are a fine place to live.

I shot this image as part of 600-frame time-lapse movie of moonrise, on September 30, the night that produced images for my last few posts. It was a very good night indeed.

October 2, 2012October 2, 2012

Big Dipper Over the Badlands

The Big Dipper swings low over the Badlands of Dinosaur Provincial Park, with an aurora added for good measure.

This another shot from my very productive night last Sunday out at Dinosaur Park, 100 km east of me. Here the curtains of aurora that made the news that evening shimmer below the iconic seven stars of the Big Dipper, now low in the northern sky on autumn evenings.

Light from the Full Moon provides the illumination. People wonder how we astrophotographers can take pictures of the stars in the daytime. We don’t. We take them at night, letting the Moon light the scene. Its light is just reflected sunlight, so a long enough exposure (and in this case it was only 8 seconds) records the landscape looking as if it were daytime, complete with blue sky, but with stars – and this night an aurora – in the sky.

October 2, 2012

Aurora Highway

Traffic seems to drive off into the Northern Lights, on a highway to heaven.

On the way home Sunday night the aurora exploded again in a burst of brilliance. I pulled over by the side of the road and grabbed some shots. I’m looking north here, with the Big Dipper also in the frame. For this shot I layered in two exposures for the ground to get a more complete sweep of the taillights. But the sky is from a single frame.

This was the widely-seen aurora of September 30, 2012. This scene of mad motion down the highway contrasts with the quiet solitude of the badlands landscape of the previous post.

October 1, 2012October 1, 2012

Northern Lights Dancing Over the Badlands

It was a marvellous night – a triple act: with a fabulous sunset, a beautiful moonrise, then as the sky got dark the aurora came out and danced.

Sunday night I headed out to Dinosaur Provincial Park near Brooks, Alberta, site of the world’s best late-Cretaceous fossil finds, and a striking landscape of eroded badlands. I was just finishing taking frames for a sunset-to-twilight time-lapse movie when the aurora kicked up in activity, quite bright at first, despite the light from the nearly Full Moon, which is illuminating the landscape. I swung the camera around, loaded in a new memory card and begun shooting another time-lapse sequence of the dancing northern lights in the moonlight.

While the display faded to the eye over the next hour, the camera still nicely picked up the subtle colours, like the magenta hues. I shot 330 frames, each 8 seconds long at ISO 800 and f/2.8 with a 16-35mm lens and Canon 5D MkII camera.They’ll make a great movie sequence.

It was a 40-gigabyte night, as the second camera was shooting the moonrise over the badlands. But then I pressed it into service as well shooting the aurora. It was a great night to be at a location as wonderful as Dinosaur Park.

September 30, 2012September 30, 2012

Pioneer Harvest Moon

The annual Harvest Moon shines over a scene from pioneering farm days.

One of the last remaining wood grain elevators still stands as a historic roadside attraction near the little hamlet of Dorothy, Alberta. It’s seen better days.

But in its time it took part in many a harvest in the Red Deer River valley. There were once no less three grain elevators here and railway tracks to take away the bountiful harvest. That was back in the 1910s and 1920s when Dorothy was a little boom town. But the prosperity waned in the Depression Years, and never returned. In the 1960s, the railway tracks were pulled up, and two of the elevators torn down.

Now, Dorothy is one of the ghost towns amid the badlands of the Red Deer River valley.

I shot this Saturday night, as the Full “Harvest” Moon rose over the hills, shining in the blue shadow of the Earth. This is one frame of 450 in a time-lapse sequence.

September 29, 2012

Harvesting the Wind

The Harvest Moon rises behind a new crop, a wind turbine harvesting the wind.

I shot this Friday evening, September 28, technically the day before Full Moon and the annual Harvest Moon. The location is amid the Wintering Hills Wind Farm northeast of me and south of Drumheller, Alberta.

This is one frame of 450 in a time-lapse sequence going from sunset into twilight with the Moon rising through the clouds. The changing colours were wonderful.

September 23, 2012September 23, 2012

Driving into the Equinox Sun

At equinox the Sun sets due west and shines into the eyes of drivers heading west into the sunset.

This was the scene Friday night on Highway 1, heading to Banff out of Calgary. I set up beside the highway to catch the scene of the Sun going down at the end of the road. I was hoping for more smoke and haze to dim the Sun to a clearly defined disk rather than deal with a bright glow. But you shoot what the sky gives you.

This is one frame from a 315-frame time-lapse movie of the traffic madly moving down Highway 1 (a true to life recording!) and the Sun glow setting behind the Rockies.

September 14, 2012September 14, 2012

Star Trail Reflections

The stars of the southern sky arc over the peaks of the Lake Louise Range in this half-hour’s worth of exposures.

For this shot I took 35 frames from a 200-frame time-lapse movie and stacked them to create star trails moving over about 25 minutes time when the sky was dark and moonless. I also layered in the moonlit landscape from a frame taken at the very end of the time-lapse sequence when the Moon has risen and was lighting the mountains and trees. So this scene is a bit of a Photoshop fake, but only so far as to merge exposures taken a couple of hours apart from the same fixed camera to combine the sky and stars from when the Moon was not in the sky with the ground from when it was, so the ground isn’t too dark and featureless.

What most people find surprising about star trail shots is the range of colours displayed. Some of the magenta trails come from a little chromatic aberration in the lens. But nevertheless, stars do exhibit lots of colours, but usually only in time exposures like this. As a bonus one frame captures either a meteor or an Iridium satellite flare at right above Mount Victoria.

I took the images for this scene on Friday, September 7, on a shoot at Herbert Lake in Banff.

September 11, 2012September 11, 2012

Milky Way Amid the Trees

This is the classic summer campsite shot, looking up through the trees to the Milky Way.

I shot this Saturday night from a favourite viewpoint in Banff at Saskatchewan River Crossing. The night proved to be less than the perfectly clear I had hoped for, so I settled for Plan B and shots looking up to a nearby nightscape scene, rather than out across a landscape and into horizon clouds. Some drifting clouds in this shot blur the stars.

This is an example of the type of simple nightscape anyone can do with a camera on a tripod. There’s no tracking going on here, just a short 70-second exposure, enough to pick up the Milky Way. The little trailing of the stars that results isn’t objectionable. I could have shortened the exposure and decreased the trailing but only by going to a higher ISO speed like ISO 3200 which, with the Canon 7D camera, is pushing it too much for noise in a shot like this.

Better still would have been to place the camera on a tracking platform. expose longer at an even slower, less noisy ISO speed, and then let the trees blur from the camera’s motion as it followed the stars. It would have simply looked like a windy night.

Or, it’s possible to combine tracked and untracked exposures, one for the sky and one for the ground, using Photoshop magic.

But I did neither here. This is an unadulterated image of the summer sky shining through trees.

September 9, 2012September 9, 2012

Milky Way Over Calm Water

This is a scene I’ve been after for some time – the Milky Way and stars reflected in calm water.

In Friday night I was at a small lake, a pond really, at the south end of the Icefields Parkway in Banff. Herbert Lake is small enough it is usually calm and reflective. Friday night was as clear and calm as you could hope for. This image is from the beginning of the night with some blue twilight still illuminating the sky, but no moonlight. The waning Moon did not rise until 11:30 pm. I shot this prior to starting a 3-hour time-lapse from the same position on the lakeshore.

The scene is looking south toward glacier-clad Mount Temple and Mount Fairview near Lake Louise.

This is a single exposure with the Canon 5D MkII and 16-35mm lens.