Lunar Halo Complex
Taken by Alan Dyer on April 15, 2022 @
near Gleichen, Alberta
Click photo for larger image
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Camera Used: Canon [Canon EOS R6]
Exposure Time: 30/1
Aperture: Unavailable
ISO: 100
Date Taken: 2022:04:16 11:43:53
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Details:
High clouds created a complex set of halo phenomena around the almost Full Moon on the evening of April 15, 2022. Ice crystals in the high cloud created the halos and arcs, set in the spring night sky, with the Big Dipper at top, Arcturus to the left, and Regulus and Leo at right of centre. The colours of the arcs and sundogs were just visible to the unaided eye.
Visible are:
— The 22° halo, and a partial and fainter larger 46° halo.
— A pair of parhelia or colourful "moondogs" sit on either side of the Moon just outside the 22° halo.
— The top of the 22° halo has a colourful upper tangent arc plus a faint Parry arc.
— The 46° halo has a rainbow-hued circumzenithal arc as well.
— A parhelic circle arc runs parallel to the horizon through the sundogs and Moon, and extends far to the west.
— On the parhelic circle at far right in the panorama image is a rare 120° parhelion (another moondog).
Photographer's website:
https://www.amazingsky.com
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