Dakota Datebook
April 23: A Cosmic Wonder
- Autor: Vários
- Narrador: Vários
- Editor: Podcast
- Duración: 0:02:28
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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.