Aurora Borealis
Taken by James MacAlpine on September 26, 2023 @
Upper Michigan, USA
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Details:
Good morning, Ninety minutes before sunrise I noticed a slight glow over the treeline, referred to Current Conditions on spaceweather.com and saw Kp=4.67, then confirmed current conditions on the NOAA real time solar wind page with Bz>11, elevated temperature, speed ~450, and density from 4 to 7.
The images are an animation representing a twenty minute period before 1030 UTC, as dawn approached just over an hour before local sunrise, and a still frame showing aurora as the slightest of green above magenta along the treeline with faint pillars. 46.2N, f/1.5, ISO 800, 15s.
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