The infamous STEVE arc of hot flowing gas associated with an active aurora.
The infamous STEVE arc of hot flowing gas associated with an active aurora, here showing its distinctive pink colour and the fleeting appearance of the green picket fence fingers that often show up hanging down from the main arc. On this night the green fingers lasted no more than two minutes. STEVE (Strong Thermal Emission Velocity Enhancement), and is a river of hot gas flowing east to west equatorward of the main aurora band. This is a tracked single image looking straight up, and framing the Summer Triangle stars at right and the Milky Way. Moonlight from the setting waxing gibbous moon lights the sky, as does the bright aurora to the north.
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Photo credit: © Alan Dyer/Stocktrek Images / Alamy / Afripics
License: Royalty Free
Model Released: No
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