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Sun Halo and contrail.

auteur: L.Laveder/Novapix

référence: t-met03-00018

Image Size 300 DPI: 19 * 29 cm

Halos are caused by sunlight being refracted by cirro-stratus clouds. These are thin clouds, very high in the atmosphere, and are composed of ice crystals. They bend light at a 22 degree angle, which creates a halo around the sun that is 44 degrees in diameter.
An insect is also visible. May 14 2006.

Keywords for this photo:

2006 - ATMOSPHERIC PHENOMENA - CIRROSTRATUS - CLOUD - CONTRAIL - EARTH - HALO - INSECT - METEOROLOGY - SUN -