Dakota Datebook

April 23: A Cosmic Wonder

Informações:

Sinopsis

A sundog is an optical phenomenon well known in North Dakota. It often appears as a rainbow-like spot on each side of the sun. When especially bright, sundogs can look like extra suns flanking the real one, sometimes connected by a glowing halo. In rare cases, a third bright spot appears above the sun. Sundogs form in extremely cold weather, when sunlight bends as it passes through ice crystals in the atmosphere, creating bright spots and halos.