Circumzenithal Arc - March 10, 2005

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A vivid display of a sundog, halo and circumzenithal arc imaged March 10, 2005
from Mt Airy, Maryland. The sequence of images below cover less
than 3 minutes. The arc was by far the brightest I've ever seen.
The camera's FOV is around 50 degrees!
The sundog
22 Degree Halo with Sundog
Beginning stages of the Arc
Halo with beginning of arc
Circumzenithal Arc at full intensity
Another shot a few seconds later
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