Is The World About To End? The Sun Looks Weird Today

A 22° halo

A 22° halo is an optical phenomenon that belongs to the family of ice-crystal halos. Its form is a ring with an apparent radius of approximately 22° around the Sun or Moon.

When visible around the Moon, it is called a moon ring or winter halo. It forms as direct sunlight or moonlight is refracted in millions of hexagonal ice crystals suspended in the atmosphere.

The halo appears large; its radius is roughly the length of an outstretched hand at arm’s length.

A 22° halo may be visible on as many as 100 days per year – much more frequently than rainbows.



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