My parents took this photo today. Does anyone know what it is?
It looks like a Circumzenithal arc, but it’s got another rainbow.
Could it be a Kern arc? Those have only been seen 6 times.
Update
Les from Atmospheric Optics tell me that the top half is a circumzenithal arc, and the bottom half is a "rare supralateral arc made by hexagonal column crystals"
Apparently seeing this is quite rare: "the combination of the two would be once a year or less"
Thanks again to Les for clearing this up 
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