A sundog was seen in a sunny field near Graceville, Minnesota yesterday (February 4) when the filmer noticed an upside-down rainbow forming above the solar phenomenon in this breathtaking clip.
The "rainbow" was caused by a circumzenithal arc, where ice crystals in the higher atmosphere refract sunlight depending on the angle of the sun, creating this bright and colourful bow in the sky.
The "rainbow" was caused by a circumzenithal arc, where ice crystals in the higher atmosphere refract sunlight depending on the angle of the sun, creating this bright and colourful bow in the sky.
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