According to the National Weather Service, "Sun Dogs" are called Parhelion.
This is the scientific name for sun dogs.
Either of two colored luminous spots that appear at roughly 22 degrees on both sides of the sun at the same elevation.
They say they are caused by the refraction of sunlight passing through ice crystals.
They are most commonly seen during winter in the middle latitudes and are exclusively associated with cirriform clouds.
They are also known as mock suns.
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