Astronomy Picture of Day: Fog Bow over California# Astronomy - 天文
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A Fog Bow Over California
Credit & Copyright: Mila Zinkova
Explanation: Is that white arch real? What is being seen is a fogbow, a
reflection of sunlight by water drops similar to a rainbow but without the
colors. The fog itself is not confined to an arch -- the fog is mostly
transparent but relatively uniform. The fogbow shape is created by those
drops with the best angle to divert sunlight to the observer. The fogbow's
relative lack of colors are caused by the relatively smaller water drops.
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Credit & Copyright: Mila Zinkova
Explanation: Is that white arch real? What is being seen is a fogbow, a
reflection of sunlight by water drops similar to a rainbow but without the
colors. The fog itself is not confined to an arch -- the fog is mostly
transparent but relatively uniform. The fogbow shape is created by those
drops with the best angle to divert sunlight to the observer. The fogbow's
relative lack of colors are caused by the relatively smaller water drops.
T
