Don't call this a 'fire rainbow'

A rare and colorful sight was spotted in the South Carolina sky last Sunday. Dozens of beachgoers photographed what many referred to as a "fire rainbow" above the Isle of Palms outside Charleston. Unfortunately, the term used to describe this display is incredibly inaccurate. This so-called "fire rainbow" isn't a rainbow at all; it's actually a circumhorizontal arc.

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