Tuesday night there was a bright halo around the Moon. It is caused by ice crystals in the thin cloud that refract (bend) the light rays from the Moon back toward the viewer like a lens.
Showing posts with label halo. Show all posts
Showing posts with label halo. Show all posts
Thursday, May 23, 2013
Moon Halo
Tuesday night there was a bright halo around the Moon. It is caused by ice crystals in the thin cloud that refract (bend) the light rays from the Moon back toward the viewer like a lens.
Saturday, October 27, 2012
Halo
Last weekend a halo surrounded the Sun. It was caused by a thin layer of ice crystals at high altitude all refracting the light at just the right angle. Pretty impressive.
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