Glows and Streaks in the Spring Sky


The Spring Sky over the Pioneer Farmstead

How many sources of skyglow can you pick out here?

There are at least five:

• the Milky Way (at left),

• green airglow (below the Milky Way),

• all too prevalent light pollution (especially reflected off the clouds coming in from the west at right),

• lingering blue twilight across the north (at left and right), common in May and June from my northern latitude,

• and even a touch of aurora right at the northern horizon at far left.

In this scene from May 28, the Milky Way arches over an abandoned pioneer farmstead from the 1930s and 40s near my home in southern Alberta.

Mars (very bright and in some clouds) and Saturn shine at lower centre, while Jupiter is the bright object in clouds at right just above the old house.

Arcturus is the brightest star here at upper right of centre, made more obvious here by shining through the clouds. The Big Dipper, distorted by the map projection used in the this panorama, is at upper right.

Technical: This is a 360° horizon to zenith panorama taken with the iPano motorized panning unit, using the 24mm lens at f/2.8 and Nikon D750 at ISO 6400, for a stitch of 28 panels, in 4 tiers of 7 segments each. Stitched with PTGui. South is at centre, north to either end. The original is 25,700 x 7,700 pixels.

Just after I shot the panorama I captured the International Space Station passing directly overhead in one of several passes this night.

ISS Pass #2 (May 28/29, 2016)
The second Space Station pass of May 28/29, 2016, at 1:40 a.m., with cloud moving in adding the glows to all the stars. Taken with the 8mm fish-eye lens from home. The Big Dipper is high in the west at right. Mars is bright at bottom, to the south. Several other satellites are in the sky as well. This is a stack of 3 exposures, each 2.5-minutes with the camera on the Star Adventurer tracker.

At this time of year the ISS is lit all night by the Sun that never sets for the astronauts. We see the ISS cross the sky not once but several times in a night at 90-minute intervals.

While the sky near solstice is never dark at my latitude, it does have its compensations and attractions.

— Alan, May 29, 2016 / © 2016 Alan Dyer / AmazingSky.com

 

Triangle of Planets in the Twilight


Mars, Venus and Jupiter (in that order from top to bottom) in a triangle, in conjunction, at an old farmstead near Vulcan, Alberta, in the morning twilight, October 28, 2015. Illumination is from the nearly Full Hunter’s Moon in the west. The trio of planets were in Leo in a fine conjunction not to be repeated until November 21, 2111. Almost all of Leo is visible here, with Regulus, the constellation’s brightest star, just to the right of the windmill blades at top. This is a stack of 6 exposures for the ground, mean combined to smooth noise, and one exposure for the sky, all  10 seconds at f/4 and ISO 800 with the Canon 6D and Canon 24mm lens.

This was the trio of planets at their best in the morning sky. 

On the morning of October 28, Mars, Venus and Jupiter formed a neat isosceles triangle in the twilight. Venus, the brightest, was in the middle, with Mars below and Jupiter above. The grouping shone amid the stars of Leo, with its brightest star, Regulus, above the windmill in the lead image above. The rest of Leo lies above the planets.

To capture the scene I drove west at 5 am to a farmstead I had shot at before, in June, to capture Venus and Jupiter, also then in Leo near Regulus, but in the evening sky looking west. Click here for that blog post from mid-June.

This morning, the Moon, just past full as the annual Hunter’s Moon, shone in the west off camera lighting the landscape.

Mars, Venus and Jupiter (in that order from top to bottom) in a triangle, in conjunction, over an old red barn near Vulcan, Alberta, in the morning twilight, October 28, 2015. Illumination is from the nearly Full Hunter’s Moon in the west. The trio of planets were in Leo in a fine conjunction not to be repeated until November 21, 2111.  This is a stack of 6 exposures for the ground, mean combined to smooth noise, and one exposure for the sky, all  10 seconds at f/4 and ISO 800 with the Canon 6D and Canon 24mm lens.

The dawn sky colours and the moonlit red barn made for a fine colour contrast.

After today, the planet configuration breaks up, as Venus descends to meet Mars on November 2 and 3, while Jupiter climbs higher. But another great morning sight awaits on November 7 when the waning crescent Moon will shine near the Venus-Mars pairing, with Jupiter above.

The conjunction of Mars, Venus and Jupiter (from bottom to top) in the dawn sky over the misty waters of Lake Macgregor in southern Alberta, on October 28, 2015. This is a single 1/4-second exposure at f/4 and ISO 400 with the Canon 6D and 24mm Canon lens.

On the way home I stopped at fog-bound Lake MacGregor to capture the planets in a brightening dawn sky over the misty waters.

This morning the three planets lay just 4.5 degrees apart, close enough to frame in high-power binoculars.

We won’t see these three planets this close to each other in a darkened sky — as opposed to being so close to the Sun we really can’t see them — until November 21, 2111.

Be sure to catch the dawn show while it lasts!

— Alan, October 28, 2015 / © 2015 Alan Dyer / www.amazingsky.com

Moonlight on the Prairie


The rising almost-Full Moon, a “Blue Moon” of July 30, 2015, rising behind a rustic old farmhouse near Bow Island, Alberta. The Moon sits in the pibk Belt of Venus with the blue shadow of the Earth below. This is a single frame from a 600-frame time-lapse sequence, taken with the Canon 6D and 16-35mm lens.

I present a short time-lapse vignette of scenes shot under moonlight on the Alberta prairie.

The movie linked below features sequences shot July 29 and 30, 2015 on beautifully clear moonlit nights at locations south of Bow Island, Alberta, on the wide open prairie. The three-minute video features two photogenic pioneer sites.

Circumpolar star trails over the historic but sadly neglected St. Anthony’s Church between Bow Island and Etzikom, Alberta. The Big Dipper is at left, Polaris at top. The Roman Catholic church was built in 1911 by English, Russian German immigrants. It served a dwindling congregation until 1991 when it closed. At that time workers found a time capsule from 1915 with names of the priest and parisioners of the day. In summer of 2014 the Church suffered its latest indignity when the iron cross on its steeple tower was stolen. It was there when I stopped at this Church on a site scouting trip in May 2014. I planned to return on a moonlit night and did on July 29, 2015. A nearby house had been torn down and the cross was now gone.  This is a stack of 300 6-second exposures with the Canon 6D at ISO 1600 and 16-35mm lens at f/2.8. Bright light from a 13-day Moon lights the scene, making for very short exposures. The ground comes from one exposure to keep shadows sharp. The final stars also come from another single exppsure taken two minutes after the last trail image. I used the Advanced Stacker Actions to stack the trails.

The church is the now derelict St. Anthony’s Church, a former Roman Catholic church built in 1911 by English and Russian-German immigrants. It served a dwindling congregation until as late as 1991 when it closed. At that time workers found a time capsule from 1915 with names of the priest and parisioners of the day.

The wood church seems to have been largely neglected since.

In the summer of 2014 the Church suffered its latest indignity when the iron cross on its steeple tower was stolen. I also shot in the pioneer cemetery of the Church.

Circumpolar star trails circling above an old rustic and abandoned house near Bow Island, Alberta, with illumination from the nearly Full Moon. Cassiopeia is near centre. Polaris is at top left.  This is a stack of 140 frames from a time-lapse sequence with additional frames added for the first and last stars, and the ground coming from a mean combine stack of 8 frames to reduce noise. Each frame is 10 seconds at f/4 with the 16-35mm lens and ISO 1600 with the Canon 6D. Stacked with Advanced Stacker Actions, using the Ultrastreaks effect, from within Photoshop.

The other site is a nearby farmhouse with photogenic textures and accompanied by rustic out buildings that are barely managing to stand.

Illumination was from a waxing gibbous Moon, just 1 to 2 days before the infamous “Blue Moon” of July 31. Its bright light turned the sky blue, and lit the landscape with the same quality as sunlight, because it is sunlight!


Enlarge the video to full screen for the full HD version.

For the technically inclined:

I shot the scenes with three cameras – a Canon 60Da, Canon 6D, and Nikon D750.

The Nikon, with a 24mm lens, was on the Dynamic Perception Stage Zero Dolly and Stage R panning unit, while the 60Da, with a 14mm lens, was on the compact Radian panning unit. The third camera, the 6D, with a 16-35mm lens, was on a fixed tripod for the star trail sequences and stills.

The music is by Adi Goldstein (AGSoundtrax.com), whose music I often use in my sequences. It just seems to work so well, and is wonderfully melodic and powerful. Thank you, Adi!

To process the several thousand frames that went into the final movie, I used Adobe Bridge and Adobe Camera Raw, supplemented by the latest Version 4.2 of LRTimelapse (lrtimelapse.com). Its new “Visual Deflicker” workflow does a beautiful job smoothing out frame-to-frame flickering in sequences shot in twilight under darkening lighting conditions. Thank you Gunther!

For the star trail sequences and the still images above I used the Advanced Stacker Actions from StarCircleAcademy.com. Unlike most other stacking programs, the Stacker Actions work from within Adobe Bridge and Photoshop directly, using the processed Raw images, with no need to create intermediate sets of JPGs. Thank you Steven!

— Alan, August 3, 2015 / © 2015 Alan Dyer / www.amazingsky.com 

Venus and Jupiter Converging


Venus (right) and Jupiter (centre), on June 12, 2015, as they are converging toward a close conjunction on June 30, 2015. The star Regulus is at left, left of the windmill. Photographed from an old farm yard north of Vulcan, Alberta. This is an HDR-stack of 3 exposures to record detail in the ground and sky. Shot with the Canon 60Da and 16-35mm lens.

Each night, Venus and Jupiter are converging closer, heading toward conjunction on June 30.

This was Venus (right) and Jupiter (centre) with Regulus at left, in a cloudy twilight sky on Friday, June 12, as Venus and Jupiter converge toward their close conjunction in the evening sky on June 30.

Be sure to watch each night as the two brightest planets in the sky creep closer and closer together. Mark June 19 and 20 on your calendar, as that’s when the waxing crescent Moon will join the duo.

I shot this from near Vulcan, Alberta, after delivering an evening program at the Trek Centre in Vulcan as a guest speaker. Clouds prevented us from seeing anything in the sky at the public event, but on my way home skies cleared enough to reveal the two bright planets in the twilight.

I stopped at an abandoned farmyard I had scouted out earlier in the evening, to serve as a photogenic backdrop.

This is a high dynamic range stack of three bracketed exposures, one stop apart, to record detail in both the dark foreground as well as in the bright sky.

— Alan, June 13, 2015 / © 2015 Alan Dyer / www.amazingsky.com

Urban and Rural Moons


The waxing crescent Moon near Venus in the spring evening sky over the skyline of Calgary, Alberta, May 21, 2015. I shot this from Tom Campbell Hill near the Telus Spark science centre. This is a single exposure with the 16-35mm lens and Canon 60Da, shot as part of a 360-frame time-lapse sequence.

The waxing Moon and Venus shine over contrasting landscapes, both urban and rural.

I shot the main image at top last night, May 21, from a site overlooking the urban skyline of Calgary, Alberta. The waxing Moon shines near Venus in the twilight sky.

By contrast I shot the image below the night before, from a location that couldn’t be more different – remote, rural Saskatchewan, on a heritage farmstead first settled in the 1920s by the Butala family. It is now the Old Man on His Back Prairie and Heritage Conservation Area.

The waxing crescent Moon and Venus (above) over the old farm house at the Visitor Centre at the Old Man on His Back Natural and Historical Conservation Area in southwest Saskatchewan, May 20, 2015, on a very clear night. The old house was the original house lived in by the Butala family who settled the area in the 1920s. This is a single exposure taken as part of an 850-frame time-lapse sequence with the 14mm Rokinon lens and Canon 60Da camera.

Here, the crescent Moon shines a little lower, below Venus, amid the subtle colours of twilight in a crystal clear prairie sky.

However, as the top image demonstrates, you don’t need to travel to remote rural locations to see and photograph beautiful sky sights. Twilight conjunctions of the Moon and bright planets lend themselves to urban nightscapes.

– Alan, May 22, 2015 / © 2015 Alan Dyer / www.amazingsky.com

Back Under the Northern Lights


Aurora & Old Pioneer House

The aurora dances behind a pioneer homestead on the Alberta prairies.

After a stay of five months in New Mexico I arrived back in Alberta earlier this week, and was greeted tonight, April 15, with a display of Northern Lights. They’ve been very active in the last month, but I’ve seen nothing of them from where I was in New Mexico.

But here in southern Alberta, I just walk out onto my back deck and there they are! An email alert prompted me to have a look, after predictions earlier in the day called for little activity tonight. But indicators picked up nicely late in the evening.

I headed to an abandoned pioneer homestead near my acreage. A photogenic foreground always adds to the scene.

Aurora over Prairie Pond

A little further down the road is a prairie pond, ruffled a little by wind tonight, blurring the reflection I was hoping to capture.

It’s nice to be back under the Northern Lights. Bring them on!

– Alan, April 16, 2015 / © 2015 Alan Dyer / www.amazingsky.com

Starlight at the Old Corral


Milky Way over the 76 Ranch Corral

The Milky Way shines behind the rustic corral of the 76 Ranch in Grasslands National Park.

It’s not a gunfight at the OK Corral, but starlight at the 76 Ranch Corral. I shot this Tuesday night in the Frenchman River valley in Saskatchewan’s Grasslands National Park. 

The scene captures the summer Milky Way, some green bands of airglow, and the old corral lit by starlight and some aurora beginning to brighten to the north.

Some occasional flashes of distant spotlights from down the valley also provide foreground illumination. The lights came from ferret spotters out at night checking on the nocturnal black-footed ferret. 

The corral once belonged to the 76 Ranch, one of the largest in Canada in its day and owned by Sir John Lister-Kaye, one of many upper class Brits who came to Canada in the 1880s to make their fortune in the newly opened range lands — until drought and hard winters of the southern Prairies forced them to sell out and break up their once huge land holdings. 

This image is a composite, but of five frames all shot at the same place in quick succession. I did not fake the sky into a foreground shot at some other time and place.

Four shots are tracked, to follow the sky for pinpoint stars. I used the new Sky-Watcher Star Adventurer tracker.

For one shot at the end of the sequence I turned the tracker’s drive off to take a single sharp image of the foreground.

Using masking in Photoshop I removed the blurry foreground from the sky images and the blurry trailed sky from the ground image.

Each was a 3-minute exposure at ISO 1600 with the 24mm lens at f/2.5.