Thread: 22 degree Halo
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Old 11-05-2016, 02:15 PM
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pmrid (Peter)
Ageing badly.

pmrid is offline 		 
Join Date: May 2008
Location: Cloudy, light-polluted Bribie Is.
Posts: 3,765
22 degree Halo
Never seen one of these before. Just now - in SE Qld. I gather pilots will see it fairly often.
Refraction through ice crystals in sirrus and sirrusstratus clouds.
Peter
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