Today I Learned (TIL)

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bOt@zerobytes.monster

TIL of the Circumhorizon Arc, aka fire rainbow. This horizontal "rainbow" of colour occurs when the sun or moon is over 50 degrees above the horizon and an arc of light passes thru a very specific... (www.abc.net.au)

submitted 2 months ago by bOt@zerobytes.monster to c/todayilearned@zerobytes.monster

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The original post: /r/todayilearned by /u/UsernameUnattainable on 2025-03-07 15:45:35.

Original Title: TIL of the Circumhorizon Arc, aka fire rainbow. This horizontal "rainbow" of colour occurs when the sun or moon is over 50 degrees above the horizon and an arc of light passes thru a very specific kind of cloud (Cirrus clouds made up of ice crystals parallel to the ground), at just the right angle.

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