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Sue, a member of my local society (Nottingham) spotted and took a photo of an oval solar halo on 7th May 2025 whilst in Buckinghamshire. I had assumed the oval shape was due to an optical distortion produced by the smart phone’s lens, but it transpires others saw the oval halo too at the same time. Images on Spaceweather.com (uploaded on 10th May) also show a parhelic circle along with the oval halo, and in Sue’s photo which she has allowed me to share here, also shows evidence of the parhelic circle; photo taken 12:38 (BST) 7th may 2025, Waddesdon Manor, Bucks. Has anyone else seen an oval solar halo?
https://spaceweather.com/archive.php?view=1&day=10&month=05&year=2025
James Dawson
NottinghamAttachments:
Gary, I think you’ve nailed it. With the eye of faith I can see an inner circular halo in Sue’s photo. Looking in Stellarium the Sun would have been 52.5 degrees above the horizon. I’ve made an animated gif to show roughly where I think the true solar halo is:
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