A unique sun dog / sun bow
Taken by Don Selle on September 8, 2017 @ Spring Branch Texas
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When I pulled in the driveway of our house in the Texas Hill Country, (between Austin and San Antonio) I saw this really vivid sun bow in the SW sky. My wife MJ said she thought it looked like an angel's wing, me, I estimated the angular distance from the sun, and size of the bow. It was about 21 - 25 degrees from the sun and measured about 5 - 7 degrees across at an angl of about 200 degrees ( or 7 o'clock position with the sun in the center). Technically, I think it may be a sun dog, but the whisps of cloud spread planar ice crystal refraction of the sun over a much larger patch of sky than in any sun dog I have seen previosly. Quite a unique sight!
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http://No but I can send more if needed via dropbox
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I think it is a (part of) circumhorizon arc. it can be seen below the Sun.
Posted by shiram 2017-09-08 19:51:00
 
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