Ring Around the Sun


On cool, clear days when there are thin clouds high in the atmosphere, a sun halo can often be seen. It appears with a 22-degree radius around the sun, and is formed by the refraction of sunlight within ice crystals. This is similar to how a rainbow is formed within raindrops, and if you look closely at this sun halo, you may notice faint bands of color.

This photograph was published on the front cover of the music CD Ring Around the Sun by Tim Flannery in February 2005.

This photograph was published in the November 2004 issue of Astronomy Now Magazine.

Date: March 12, 2000, 1:38pm PST
Time: 1:38pm PST
Location: Anza-Borrego Desert State Park, California
Camera: Olympus OM-1 35mm SLR
Film: Fuji Provia 100 slide
Focal length: 24mm
Aperture: f/11-16
Exposure time: 1/250 second
Scanner: Nikon Coolscan LS-10E

Revised: February 1, 2004
Copyright © 2000 Joe Orman
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