14 Days With Circles - Day 6 (A Sundog aka) 22 Degree Circle)

This is a photo of a sun dog. Sun dogs are formed by ice crystals (called “diamond dust‘) that act as prisms, bending the light rays of the sun. Sun dogs may or may not be in the form of halos. This one may very well have been a 22° halo (so called because 22° is the minimum deflection of the sun’s light rays through the diamond dust), but since I never saw the entire halo I’ll never know. Update: My niece recently took a great photo of almost an entire Ice Halo.

  1. […] her iPhone. This shot was taken in Minot, North Dakota. This is more clearly an Ice Halo than the Ice Dog I captured and showed […]


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