Showing posts with label halo. Show all posts
Showing posts with label halo. Show all posts

Thursday, May 23, 2013

Moon Halo

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

Sun 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.