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.
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. 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 these may be from glowing N atoms and O2+ molecules rather than the usual O atoms.
Size: 5400px × 3605px
Photo credit: © Alan Dyer / VWPics / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: air, alberta, amazing, astro, astronomical, astronomy, aurora, big, curtains, dipper, home, lights, night, nitrogen, north, northern, o2+, photography, photos, polaris, prairie, skies, sky, space, spires, star, unique, universe
