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> Lunar Halo

Lunar Halo

author: Patrick Lécureuil/Novapix

reference: t-met03-80011

Image Size 300 DPI: 19 * 29 cm

Lunar halos are caused by moonlight being refracted by cirro-stratus clouds. These thin clouds are located very high in the atmosphere, and are composed of ice crystals. They bend light at a 22 degree angle, which creates a halo that is 44 degrees in diameter.

Keywords for this photo:

2009 - ATMOSPHERIC PHENOMENA - CIRROSTRATUS - CLOUD - EARTH - HALO - METEOROLOGY - MOON - NIGHT - SATELLITE -