Light Arcs
Taken by Scott Provost on September 26, 2017 @ St. Joan of Arc School, Chicopee Massachusetts
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Pretty intense arcs of light from the sun. Even all the students in the playground stopped to observe. Awesome light show! One arc even stretched about 180 degrees across the sky at one point.
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It is a halo display, which has its origin in tiny ice crystals of which the high cloud veils are composed. In your images I recognize the 22 degrees ring with bright upper tangent arc strechting to a circumscribed halo, a 22 degrees parhelion (sun dog), and a section of the parhelic circle. Halos are not rarely seen, but bright displays like this are quite uncommon.
Posted by pphv 2017-09-27 03:01:06
 
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