Lunar Corona

By: Dennis Mammana


Region: Americas

Site: Anza-Borrego Desert - USA

Date: 2008 August 15

As seen on the National Geographic News the light from the nearly full moon interacts with the cloud droplets and high ice crystals in the desert sky to create the colorful scene of a lunar corona. This atmospheric phenomena have an intensely bright central aureole which is almost white and fringed with yellows and reds. Sometimes that is all to be seen but sometimes they appear to have one or more successively fainter and gently colored soft rings surrounding the aureole. The corona can be 15 degrees or so in diameter and often it shrinks and swells as different clouds move in front of the moon. Dennis Mammana/

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