A Moon Halo

A 22° Halo like this is visible when thin cirrus clouds made of ice cover the sky and the ice-crystals in the clouds are oriented properly.
To the lower left of the Halo you can see the constellation Orion.

Camera Nikon D200
Lens Tokina 12-24 /4 at 12mm
Exposure 15sec. at f/4 ISO 360
Date: 21 February 2010

 

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