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Sun halo and sun dogs

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December 10, 2016

Sun dogs are an atmospheric phenomenon that consists of a pair of bright spots on either side on the sun, created by light interacting with ice crystals in the atmosphere. They often co-occur with a sun halo.

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December 10, 2016

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Eleanor Imster

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About the Author:

Eleanor Imster has helped write and edit EarthSky since 1995. She was an integral part of the award-winning EarthSky radio series almost since it began until it ended in 2013. She and her husband live in Tennessee, where they enjoy guitar playing and singing. They have 2 grown sons.