Atmospheric Phenomena

Last Update: 2/28/2012

Halos, arcs, sun dogs, etc are caused by sunlight or moonlight reflecting and/or refracting through ice crystals or water vapor in the atmosphere.

Sun Dog

Sun dog seen on October 11th, 2016.

Sun Arc

Arc seen over the sun on September 2nd, 2016.

Sun Dogs and Ring

Sun dogs and ring around the sun, seen on September 2nd, 2016.

Sun Dog

A ring around the moon seen on October 25th, 2015.