All-Sky Aurora From Churchill
Taken by Alan Dyer on February 16, 2018 @ Churchill, Manitoba
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  Camera Used: Canon Canon EOS 6D Mark II
Exposure Time: 4/1
Aperture: f/3.5
ISO: 3200
Date Taken: 2018:02:17 12:53:46
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It was an amazing show last night (Feb 16/17) as skies cleared and the aurora began to appear in curtains across the sky, all thanks to an impact of particles from a coronal hole earlier in the week.

For about 90 minutes we had well-defined curtains, often with rapid motion, and at times for brief seconds, bright outbursts with pinks along the bottom edge from nitrogen molecules in the lower atmosphere glowing. These views are from the Churchill Northern Studies Centre in Churchill, Manitoba at 58° North latitude and situated under the auroral oval. At this longitude the oval is as far south as it normally sits around the globe. The most active times were between 10 pm and 11:30 pm CST. After that the aurora subsided into a sky covering glow without a lot of structure and no pulsating effects. Then the clouds moved back in. We were very fortunate indeed! Temperatures were about -30° C with a very brisk wind chill!

The circular images are with an 8mm fish-eye lens and so cover much of the sky, and are frames from a 925-frame time-lapse. The vivid pinks shown here lasted only a minute or so. One view shows the aurora to the south through Orion and the winter sky over a launch tower of the abandoned Churchill Rocket Range. Another view is looking west back toward the Northern Studies Centre.
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Hey Alan , Great shots, I am curious as to the camera settings for the fisheye lens. Do you mind sharing?
Posted by HDT 2018-02-17 14:49:33
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