The same kind of crystals that form circumzenithal arcs can also produce sundogs.
|
|
Here a circumzenithal arc is visible near the top while a sundog is visible each side of the sun, which was conveniently hidden behind a tree.
There was no sign of the 22 degree halo on this occasion.
|
|
|
The sun was 18 degrees up, close to the optimum altitude, when this image was taken.
|
Just a couple of minutes later and the arc is fading as the type of crystals change. With the drifting cloud these colourful arcs were all too brief.
|
Canon EOS 20D 21st June 2005
Wiltshire, England