A sundog is an atmospheric phenomenon that creates bright spots of light in the sky, often on a luminous ring or halo on either side of the sun. They are easiest seen when the sun is low. Sundogs are formed by plate shaped hexagonal ice crystals in high and cold thin cirrus clouds. Light rays enter a near vertical prism side face of a crystal and exit through a second side face inclined 60° to the first. There is net refraction at each face and the light is dispersed into colors.
Click here to cancel reply.
Sorry,At this time user registration is disabled. We will open registration soon!
Don't have an account? Click Here to Signup
© Copyright GreenAnswers.com LLC