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• n  a bright spot on the parhelic circle; caused by diffraction by ice crystals

• At a certain angle, the bird becomes a radiance, a sort of feathered parhelion, a sundog.

• mock sun
• sundog

News & Articles

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• Heart Butte sundog explained
  Heart Butte viewer Adrien Wagner sent us a photo of an atmospheric phenomenon known as a sundog. It's scientific name is parhelion, which is rooted in the Greek word ???????? (parelion), meaning "beside the sun."
  Nov. 12, 2013 - KXLH Helena