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    Circumscribed halo    

 

When the sun is 29 degrees or higher up in the air, the upper and lower tangent arcs start to join and form a circumscribed halo. Its form also depends on the position of the sun. In this case, the sun was about 50 degrees up in the sky.

2015-05-30 - A circumscribed halo together with a 22 degree halo normal || enhanced || enhanced & assigned.