SGH-A3 Clouds
Cumulus | Cirrus | Sundog | Nimbostratus | Cumulonimbus

Sun Dog (Parhelia)

A "Sun Dog" or parhelia (mock Sun) is an optical phenomenon produced by the refraction of sunlight through ice crystals in cirroform clouds. Parhelia are vertical bars of colored light (as tall as the apparent diameter of the Sun) which appear 22 degrees (about 4-5 handwidths) on either side of the Sun.
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