A few members at our October meeting reported seeing a halo around the moon a couple of days earlier. We briefly discussed the phenomena and the reasons behind it, concluding it was something to do with ice crystals in the atmosphere.
Yesterday some more spectacular images were taken in the USA of a wide variety of optical 'features' around the sun. The link below explains the phenomena in more detail with the spectacular images.
Look! Up in the sky! It’s…it’s… it’s an amazing optics display | Bad Astronomy | Discover Magazine:
Chris
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