Aurorae with SAR and SAB?
Taken by Andrew Harvey on May 10, 2024 @
Cannon Beach, Oregon, USA
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Camera Used: SONY ILCE-7RM4
Exposure Time: 16/5
Aperture: f/2.0
ISO: 3200
Date Taken: 2024:05:13 12:23:26
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Details:
While going through the aurora images of Haystack Rock in Cannon Beach from 10 May 2024 I noticed something unusual. A red band and two blue bands stayed in the same spots in the sky for over a half hour while the aurorae danced around them. I can actually make out the red band in photos an hour and a half later. The bands began to dim and then became obscured by the bright aurorae. I think the red band is called an SAR, which is stable auroral red arc. The SAR appears to be aligned east to west. The blue ones might be something that hasn't been observed before because I haven't found any info on them online (?). I'll call them double SABs for stable auroral blue arcs. It would be interesting to know why their alignment is different than the SAR and why there are two parallel arcs. There were also interesting bands straight overhead that formed complex shapes. These images span from 21:57 to 22:35 PDT.
Photographer's website:
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