by owlice » Sat Dec 04, 2010 10:59 pm
Circumhorizon Arc
Copyright: Bruce DeKock
[attachment=0]sun dog.jpg[/attachment][/i]
This image was submitted with a question that was essentially, "what is this?" I think it is a circumhorizon (or circumhorizontal if you prefer) arc. The shadows under the cars indicate that the sun was overhead, and this was confirmed in a later email by Mr. DeKock, who said the image was taken around noon; he also said it was late June, and these halos are likely at that time of year. The colors are bright, which is another hallmark of this kind of arc. Other possibilities include a circumzenithal arc, but they are curved like smiles and red on the bottom, rather than the top, and an infralateral arc, which is an infrequently-seen halo, curved, and faint.
If my reasoning here (not elsewhere... just here
) is not sound, or you think this is something else, please say so; thanks!
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[size=120][b]Circumhorizon Arc[/b][/size]
Copyright: Bruce DeKock
[size=80][i][attachment=0]sun dog.jpg[/attachment][/i][/size]
This image was submitted with a question that was essentially, "what is this?" I think it is a circumhorizon (or circumhorizontal if you prefer) arc. The shadows under the cars indicate that the sun was overhead, and this was confirmed in a later email by Mr. DeKock, who said the image was taken around noon; he also said it was late June, and these halos are likely at that time of year. The colors are bright, which is another hallmark of this kind of arc. Other possibilities include a circumzenithal arc, but they are curved like smiles and red on the bottom, rather than the top, and an infralateral arc, which is an infrequently-seen halo, curved, and faint.
If my reasoning here (not elsewhere... just here :D) is not sound, or you think this is something else, please say so; thanks!