Daniel Pasternak

Moon winter halo

 

Hand held shot, Moon above the Carl Pasternak Rolling Roof Observatory.

 

A 22° halo is a type of optical phenomenon, forming a circle with a radius of approximately 22° around the Moon, as the moonlight is refracted on millions of randomly oriented hexagonal ice crystals suspended in the atmosphere.

 

14,045 views on NASA asterisk.apod.com/viewtopic.php?f=29&t=35613&p=25...

 

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