Auroras on the northern horizon at 11:30 PM CDT October

Auroral
Glow

Octoer 9, 2026 Grand Rapids, MN Kp 3-
© 2026 Bob Conzemius / TornadoBob.com
Aurora account

Modest Solar Wind for Auroras

A coronal mass ejection (CME) was forecast to impact Earth this evening, but the CME was late, and the forecast was updated to reflect a later impact, sometime later during the day. Nonetheless, several hours of modest negative Bz got the northern horizon to light up a bit, and the moon was nearly in a new phase, allowing the skies to remain dark most of the night. The conditions were sufficient in the evening, so I was able to go out and be back before midnight.

My goal was to keep things simple, and since the aurora was just a northern horizon glow for the most part, I only took three pictures. I took one with my 14mm f1.4 lens and two more with the 24mm f1.4 lens. Both are shown below

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A glow on the northern horizon at Prairie Lake. Taken with the 14mm lens.
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Photo with the 24mm lens.
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A second photo with the 24 mm lens.
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