Friday the 13th Aurora
Taken by Alan Dyer on October 13, 2017 @
near Gleichen, Alberta
Click photo for larger image
| |
Camera Used: NIKON CORPORATION NIKON D750
Exposure Time: 3/1
Aperture: f/2.0
ISO: 6400
Date Taken: 2017:10:14 11:31:43
|
|
| More images
Details:
We and most across northern North America were treated to a decent aurora on Friday the 13th. I shot these are images from home in southern Alberta, though they were taken after midnight MDT into October 14.
They are part of a 1000-frame time-lapse. Each frame is 3 seconds at f/2 and ISO 6400 wth the Sigma 14mm lens and Nikon D750.
They show the main auroral oval topped by oxygen reds and spires and spikes that moved slowly westward. Diffuse green patches above turned off and on, and I wonder if these might be from glowing N atoms and O2+ molecules rather than the usual O atoms that create the more yellow-green colour of the main auroral curtains.
Photographer's website:
http://www.amazingsky.com
|
|
|
