The Aurora Borealis in San Diego! : October 10, 2024

October 8-9: Sunspot AR3848

While trying to see if I could find the comet in the daylight at its predicted brightest (magnitude -3), I captured the sunspot that generated the solar flare and CME that caused the October 10 auroras. No luck with the comet.

Oct 8 19:19Z

Oct 9 17:59Z

October 10: Ramona

While an actual aurora did appear briefly, the persistent red glow is known as a "Stable Auroral Red (SAR) arc".

04:00Z Cassiopeia in the glow of a SAR arc	pIMG_2173.JPG	Polaris lower left of center	pIMG_2183.JPG
04:43Z An actual aurora flared up for a few minutes	04:46Z	04:50Z The aurora is pretty dynamic, while the SAR arc is, well, stable!	05:07Z
The Summer Triangle