Monday, March 26, 2012

Halo



Like rainbows, haloes are formed around the Sun due to moisture (in this case ice crystals) being refracted from the Sun’s rays in the upper atmosphere. Sometimes two or more areas of the circle or arcs surrounding the Sun will be brighter, forming what are called Sun Dogs. Haloes can also form around the Moon, and occasionally around the brighter stars and planets like Venus. Haloes affect people visually.

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