For background, I was on a tour coming back from Ballestas Islands just off of Peru, around 11:00 a.m., no rain (it's a desert area), sky was partly cloudy. The phenomenon stayed a couple of minutes. As we progressed, the colours merged to a strand of amber.

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[–] 4 points 11 months ago (2 children)

Sun dogs are refraction, and these clouds are diffraction

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