Double Sundog over the Kaibab Plateau, Arizona


I was driving south in House Rock Canyon, Arizona after hiking in Buckskin Gulch when I noticed these two beautiful sundogs on either side of the setting sun. This was one of the best displays I have ever seen so I had to stop and photograph it. Sundogs are created when sunlight is refracted by hexagonal ice crystals in the sky. If the conditions are right, a complete halo around the sun can be seen. Other features such as arcs can also be seen and a very faint part of one can be seen near the top of this photograph. Imagine a circle around the sun that passes through the sundogs. If you look carefully where the top of this circle would be, you'll see some colors from the bottom of a tangent arc.

Photographer: Rick Scott
Date: October 14, 2011
Camera: Canon EOS 40D digital camera
Lens: Canon EF 16-35mm f/2.8L USM at 19mm
Exposure: 1/800 second at f/8
Camera Mode: ISO 100 RAW
Software: Adobe Photoshop CS5 for RAW conversion and image processing

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Updated: 16 November 2011