Rare rainbow
Circumhorizontal arcs, or "fire rainbows, are essentially ice-halos formed by the refraction of sunlight or, occasionally, moonlight, in plate-shaped ice crystals suspended in the atmosphere.
Circumhorizontal arcs, or "fire rainbows, are essentially ice-halos formed by the refraction of sunlight or, occasionally, moonlight, in plate-shaped ice crystals suspended in the atmosphere.