Circumzenithal Arc between Clouds

One of the good things about the summer months is that the sun is still high enough after leaving work for some good halo effects.

The sun was 21 degrees above the horizon on this occasion, which is very favourable for the circumzenithal arc.

This one was visible for several minutes before it was hidden by middle level cloud.

Canon EOS 20D   4th August 2008
Berkshire, England

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