Sailing to the Northern Lights


Sailing to the Lights Title

I present a music video of time-lapses of the Northern Lights from Norway, shot from the ship the aptly named m/s Nordlys.

The Nordlys is one of many ferry ships in the Hurtigruten cruise line (the name means “fast route”) that ply the Norwegian coast, with daily departures from Bergen (at latitude 60° N) to Kirkenes at the top of Norway (at 71° N). At the top end of Norway you are under the auroral oval and almost always see some level of auroral activity, if skies cooperate.

This 11-day cruise was blessed with five clear nights with active auroras. I was serving as an instructor for a tour group of 30 from the U.S.-based Road Scholar tour company.


Sailing to the Northern Lights from Alan Dyer on Vimeo.


The final sequence is of the ship entering the Trollfjorden – a narrow fjord often entered in darkness under searchlight. This was a dramatic sight with the aurora dancing overhead.

For a selection of still images from this trip and from the second cruise I did immediately following, see my previous blog post, The Nordlys of Norway. 

Technical Info:
All exposures were about 1 to 1.3 seconds only, to minimize blurring during each exposure, shot with the Nikon D750 at ISO 6400, and with mostly the Sigma 14mm Art lens at f/1.8.

One sequence is with the Rokinon 12mm full-frame fish-eye at f/2.8. Intervals were 1 to 2 seconds, providing a rapid cadence.

In assembly I applied a 4-frame blur to smooth the frame-to-frame motion. All processing with Adobe Camera Raw and assembly with the Mac app Time-Lapse from MicroProjects.ca (an app no longer available – a pity).

Music is by the Hollywood soundtrack artists AudioMachine, and is used with permission under “social media” licence. It is the track “Above and Beyond” from their album Tree of Life.

— Alan, November 16, 2017 / © 2017 Alan Dyer / AmazingSky.com 

 

The Nordlys of Norway


Nordlys Auroral Red Curtains #1

For the past three weeks I chased the “nordlys” – the Northern Lights – along the coast of Norway up to a latitude of 71° North.

As I type this blog our ship, the Hurtigruten ferry the m/s Nordlys, is rocking and rolling as we cross the Froy Sea off the southern coast of Norway on the way south to Bergen.

We’re completing a cruise up and down the Norwegian coast, the second of two consecutive 11-day cruises I took this autumn as an enrichment lecturer on aurora cruise tour packages offered by the U.S.-based Road Scholar tour company.

It’s been a superb chase up and down the coast – twice! – to catch the Lights. We got a total of 8 clear nights of aurora out of 22, not a bad tally for this time of year.

Here’s a gallery of images, all shot from the ship using a fast lens and high ISO speeds to keep exposures down to about 1 second to minimize blurring from the ship movement.

 

One of the most memorable nights was on the first cruise when we sailed into the narrow Trollfjorden fjord in the dark with just the ship’s spotlights lighting the fjord walls only metres away from the ship. Above us, the Northern Lights danced. Unforgettable!

The Hurtigruten line operates daily sailings up and down the coast, from Bergen to Kirkenes, up into the auroral oval, which in this part of the world lies at a high latitude above the Arctic Circle. However, the warm gulf stream current keeps the water from freezing and the coast far milder than would be expected for such a high latitude.

This is a trip that should be on the bucket list for all aurora chasers.

— Alan, November 10, 2017 / © 2017 Alan Dyer / amazingsky.com

Conjunctions, Satellites & Auroras, Oh My!


Friday the 13th Aurora Title

October has brought clear skies and some fine celestial sights. Here’s a potpourri of what was up from home. 

We’ve enjoyed some lovely early autumn weather here in southern Alberta, providing great opportunities to see and shoot a series of astronomical events.


Conjunctions

Venus & Mars in Close Conjunction #2 (Oct 5, 2017)
Venus and Mars in close conjunction in the dawn sky on October 5, 2017. Venus is the brightest object; Mars is below it; while the star above Venus is 4th magnitude Sigma Leonis. The foreground is illuminated by light from the setting Full Moon in the west. This is a single 1-second exposure with the 135mm lens at f/2 and Canon 60Da at ISO 800. 

On October 5, Venus and Mars appeared a fraction of a degree apart in the dawn twilight. Venus is the brightest object, just above dimmer but red Mars. This was one of the closest planet conjunctions of 2017. Mars will appear much brighter in July and August 2018 when it makes its closest approach to Earth since 2003.


Satellites: The Space Station

Overhead Pass of the Space Station in Moonlight
An overhead pass of the ISS on October 5, 2017, with the Full Moon rising in the east at left. The ISS is moving from west (at right) to east (at left), passing nearly overhead at the zenith at centre. North is at the top, south at bottom in this fish-eye lens image with an 8mm Sigma fish-eye lens on the Canon 6D MkII camera. This is a stack of 56 exposures, each 4 seconds long at an interval of 1 second. 

The Space Station made a series of ideal evening passes in early October, flying right overhead from my site at latitude 51° N. I captured it in a series of stacked still images, so it appears as a dashed line across the sky. In reality it looks like a very bright star, outshining any other natural star. Here, it appears to fly toward the rising Moon.


Satellites: Iridiums

Twin Iridium Satellite Flares (October 9, 2017)
A pair of nearly simultaneous and parallel Iridium satellite flares, on October 9, 2017, as they descended into the north. The left or westerly flare was much brighter and with a sharp rise and fall in brightness. While it was predicted to be mag. -4.4 I think it got much brighter, perhaps mag -7, but very briefly. These are Iridium 90 (left) and Iridium 50 (right). This is a stack of 40+ exposures each, 2 seconds at 1-second intervals, with the Sigma 24mm lens at f/1.4 and Nikon D750 at ISO 6400.

Often appearing brighter than even the ISS, Iridium satellite flares can blaze brighter than even Venus at its best. One did so here, above, in another time-lapse of a pair of Iridium satellites that traveled in parallel and flared at almost the same time. But the orientation of the reflective antennas that create these flares must have been better on the left Iridium as it really shot up in brilliance for a few seconds.


Auroras

Aurora and Circumpolar Star Trails (Oct, 13, 2017)
A circumpolar star trail composite with Northern Lights, on October 13, 2017, shot from home in southern Alberta. The Big Dipper is at bottom centre; Polaris is at top centre at the axis of the rotation. The bottom edge of the curtains are rimmed with a pink fringe from nitrogen. This is a stack of 200 frames taken mostly when the aurora was a quiescent arc across the north before the substorm hit. An additional single exposure is layered in taken about 1 minute after the main star trail set to add the final end point stars after a gap in the trails. Stacking was with the Advanced Stacker Plus actions using the Ultrastreaks mode to add the direction of motion from the tapering trails. Each frame is 3 seconds at f/2 and ISO 6400 wth the Sigma 14mm lens and Nikon D750.

Little in the sky beats a fine aurora display and we’ve had several of late, despite the Sun being spotless and nearing a low ebb in its activity. The above shot is a composite stack of 200 images, showing the stars circling the celestial pole above the main auroral arc, and taken on Friday the 13th.

Aurora from October 13, 2013
A decent aurora across the north from home in southern Alberta, on Friday the 13th, October, 2017, though these frames were taken after midnight MDT. 3 seconds at f/2 and ISO 6400 wth the Sigma 14mm lens and Nikon D750.

This frame, from some 1300 I shot this night, October 13, captures the main auroral arc and a diffuse patch of green above that pulsed on and off.

You can see the time-lapse here in my short music video on Vimeo.

Friday the 13th Aurora from Alan Dyer on Vimeo.

It’s in 4K if your monitor and computer are capable. It nicely shows the development of the aurora this night, from a quiescent arc, through a brief sub-storm outburst, then into pulsing and flickering patches. Enjoy!


What all these scenes have in common is that they were all shot from home, in my backyard. It is wonderful to live in a rural area and to be able to step outside and see these sites easily by just looking up!

— Alan, October 16, 2017 / © 2017 Alan Dyer / AmazingSky.com 

 

The Aurora Starring Steve


"Steve," the Strange Auroral Arc (Spherical Fish-Eye Projection)

I’ve assembled a music video of time-lapse clips and still images of the fine aurora of September 27, with Steve making a cameo appearance.

The indicators this night didn’t point to a particularly great display, but the sky really performed.

The Northern Lights started low across the north, in a very active classic arc. The display then quietened.

But as it did so, and as is his wont, the isolated arc that has become known as Steve appeared across the south in a sweeping arc. The Steve arc always defines the most southerly extent of the aurora.

Steve faded, but then the main display kicked up again and began to fill the sky with a post-sub-storm display of pulsing rays and curtains shooting up to the zenith. Only real-time video can really capture the scene as the eye sees it, but the fast time-lapses I shot do a decent job of recording the effect of whole patches of sky turning on and off.

The display ended with odd pulsing arcs in the south.

Here’s the video, available in 4K resolution.

Alberta Aurora (Sept. 27, 2017) from Alan Dyer on Vimeo.

Expand to fill the screen for the best view.

Thanks for looking!

— Alan, October 7, 2017 / © 2017 Alan Dyer / AmazingSky.com 

 

Northern Lights Over a Prairie Lake


Auroral Arch over a Prairie LakeThe Northern Lights dance in the solstice sky over a prairie lake. 

This was a surprise display. Forecasts called for a chance of Lights on Saturday, June 24, but I wasn’t expecting much.

Nevertheless, I headed to a nearby lake (Crawling Lake) to shoot north over the water, not of the Lights, but of noctilucent clouds, a phenomenon unique to the summer solstice sky and our latitudes here on the Canadian prairies.

Aurora and Noctilucent Clouds over Crawling Lake v2

But as the night darkened (quite late at solstice time) the aurora began to appear in the deepening twilight.

I started shooting and kept shooting over the next four hours. I took a break from the time-lapses to shoot some panoramas, such as the headline image at top, capturing the sweep of the auroral oval over the lake waters.

Aurora and Noctilucent Clouds over Crawling Lake v1

Just on the horizon you can see some noctilucent clouds (NLCs) as well – clouds so high they are lit by the Sun all night long. NLCs sit at the same height as the bottom of the auroral curtains. But they appear here lower and much farther away, which they likely were, sitting farther north than the auroral band.

Arcs of the Aurora and Milky Way
A 360° panorama of the aurora and Milky Way in the twilight sky of a summer solstice evening.

I also shot this 360° panorama (above) capturing the arc of the aurora and of the Milky Way. This is a stitch of 8 segments with a 14mm lens mounted in portrait mode.

I’ve assembled the several time-lapse sequences I shot into a short music video. Check it out on Vimeo here. Click through to the Vimeo page for more technical information on the video sequences.

As always click HD, and relax and enjoy the dancing lights over the calm waters of a prairie lake on a summer evening.

Thanks!

— Alan, June 26, 2017 / © 2017 Alan Dyer / amazingsky.com

 

Night of the Great Aurora


Great Aurora of May 27, 2017 – Wide-Angle v5

No one predicted this spectacle. But on May 27 the last-minute warnings went out to look for a fabulous show as night fell.

And what a show it was! As darkness fell the sky was lit with green curtains. After midnight the curtains converged at the zenith for that most spectacular of sky sights, a coronal burst.

Aurora over the Rothney Observatory

As the night began I was at the Rothney Observatory helping out with the public stargazing night.

ISS and Aurora - Rising out of the West

We saw the Space Station rise out of the west over the Rockies and pass through the Northern Lights.

ISS and Aurora - In the East over Rothney Observatory

It then headed off east, appearing here as the streak amid the Lights and light pollution of Calgary.

To continue to shoot the display I, too, decided to head east, to home. I should have gone west, to the mountains.

I drove through rain to get home, and missed the peak of the display, judging by images from others in the Rockies, and those to the north.

ISS Through the Aurora (May 27, 2017)

But as I got home clouds began to clear enough for a glimpse of the Space Station, on its next pass, flying overhead, again through the aurora. I wonder what the astronauts might have been seeing looking down.

Great Aurora of May 27, 2017 – Wide-Angle v3

From home, I caught another bright sub-storm outburst to the north, as the curtains suddenly exploded in brightness and rapid motion, with characteristic pink fringes at the bottoms, from nitrogen molecules.

What impressed me about this display was the smell! Yes, you see auroras and some claim to hear them. But this display is one I’ll remember for the springtime scent of lilacs in the night air as the Lights danced. 

The Great Aurora of May 27 from Alan Dyer on Vimeo.

Here is a short music video of several time-lapse sequences I shot, of the sub-storm then post-storm subsidence into the patchy flaming and flickering effect that we often see at the end of a great display. And this was certainly one of them.

We southerners were treated to the class of display you usually have to travel north the Arctic and auroral oval to see.

— Alan, May 31, 2017 / © 2017 Alan Dyer / AmazingSky.com 

 

Rivers of Earth and Sky


Shooting at Orkney Viewpoint

The arch of the Milky Way mirrors the sweep of the Red Deer River on a magical night in the Alberta Badlands.

Images of the Milky Way arching across the sky are now iconic. They are almost always assembled from individual frames stitched together to make a seamless panorama.

From the northern hemisphere, spring is the best season to shoot such a panorama as the Milky Way then remains confined to the eastern sky.

Later in summer, when the Milky Way passes directly overhead, panoramas are still possible, but the Milky Way looks distorted. The process of mapping a round sky onto a rectangular image, as I show here, inevitably stretches out the Milky Way near the zenith.

Last Saturday, in search of the Milky Way during prime panorama season, I set up for the night at Orkney Viewpoint overlooking the Red Deer River in the Alberta Badlands north of Drumheller. There, the river performs a grand curve through the valley below.

Above, the Milky Way, often described as a river of stars, sweeps in mirror-image fashion above the earthly river.

Rivers of Earth and Sky
This is a stitch of 8 segments with the Sigma 20mm Art lens, in portrait mode, and Nikon D750. Each 30 seconds at f/2 and ISO 3200. Stitched with Adobe Camera Raw. Taken on a mild and moonless night, May 20, 2017.

The panorama above contains the reflection of stars – of the constellation of Delphinus in particular – in the smooth water on a windless night.

To the north at left, the Northern Lights put on a subtle show. While never spectacular to the eye, the camera records the aurora’s colour and forms that often elude the naked eye.

Aurora over Red Deer River
This is a stack of 4 x 15-second exposures for the ground to smooth noise, and one 15-second exposure for the sky, all with the 20mm Sigma lens at f/2.8 and Nikon D750 at ISO 3200. They were part of a 250-frame time-lapse.

The display was brightest early in the evening – that’s 11 p.m. now in May at my latitude.

The display then faded in intensity before I shot the two panoramas about 1 a.m., but the last few frames of the time-lapse show a final burst of colour from a lone curtain reflected in the river.

Lone Curtain of Aurora over Red Deer River
This is a stack of 84 x 15-second exposures for the ground to smooth noise, and one 15-second exposure for the sky, all with the 20mm Sigma lens at f/2.8 and Nikon D750 at ISO 3200. They were part of a 250-frame time-lapse.

This was a magical night indeed. And a rare one this spring with clouds more often the norm at night.

The next dark of the Moon coincides with summer solstice. So while the moonlight won’t interfere, critical for shooting the Milky Way, the glow of perpetual twilight at my latitude will. The Milky Way will be set in a deep blue sky.

By July’s dark of the Moon the Milky Way will be high overhead, making panorama arches tough to assemble. It looks like this might have been my one best night to capture such a scene this year. But it was a good one.

— Alan, May 24, 2017 / © 2017 Alan Dyer / amazingsky.com