Moondogs

An interesting Moon phenomena.Wikipedia...A moon dog or moondog [scientific name paraselene, plural paraselenae, i.e. "beside the moon"] is a relatively rare bright circular spot on a lunar halo caused by the refraction of moonlight by hexagonal-plate-shaped ice crystals in cirrus or cirrostratus clouds. Moondogs appear to the left and right of the moon 22° or more distant. They are exactly

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