22° Halo ·
Ice-Crystal Refraction
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.com · hexagonal ice · 60° prism · minimum deviation
Ring radius
0.0°
Deviation
—
Stage
—
Sunlight source
Hexagonal ice crystal
Red ray (bends least)
22° halo ring
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.com · The 22-Degree Halo: Ice-Crystal Refraction Rings Around the Sun and Moon