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Two fogbows

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September 20, 2019

Fogbows are rainbows’ cousins – made by much the same process – but with the small water droplets inside a fog instead of larger raindrops. Look for fogbows in a thin fog when the sun is bright. You might see one when the sun breaks through a fog.

White arch against a dark blue sky. — Allen Carr captured this fogbow over Yellowstone Park’s White Dome Geyser on September 12, 2019.

White arch against blue background. — Fogbow and Orion, early on the morning of September 13, 2019, by Photography of the Eternal Nomad.

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September 20, 2019

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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.