Sun Dogs
Here is the complete information about sun dog .Patches of light that sometimes appear beside the sun are called sundogs. Sun Dog scientific name is parhelion (plural: parhelia) from the Greek parēlion, meaning "beside the sun." Speculation is that they are called that because they follow the sun like a dog follows its master. Sundogs (or sun dogs) are also referred to as mock suns or phantom suns.
Sundogs often appear as colored areas of light to the left or right of the sun, 22 degrees distant and at the same distance above the horizon as the sun. They are frequently observed on a ring or halo around the sun.
There are also moon dogs that appear alongside the moon and are formed by lunar light passing through ice crystals. Moon dogs, or paraselenae, are not observed as often as sundogs because they are visible when the moon is bright and because they appear during the night.







