ORLANDO, Fla. – A halo around the moon put on a show-stopping display Tuesday night. Halo

No, it wasn’t aliens, but simply ice crystals making up the high, thin cirrus clouds drifting through the Central Florida sky. Halo formation

Light from either the sun or moon refracts through the ice crystals. Refraction

A 22° halo then forms around the sun or moon. A 22° halo is the most common halo to form during refraction. In rare cases, a 46° halo forms. Facts about halos

As the sun was setting Tuesday evening, sun dogs appeared near the horizon. Sundog during News 6 at 4 p.m.

Sun dogs also form by refraction, however, hexagonal plates make up the clouds versus the column-like ice crystals that form halos. Sun dogs

These phenomenon can happen year-round, but our most common during t

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