Icebow. The cooler brother of a rainbow.
Rainbows are cool and stuff, but they can’t compete with “icebows.” Icebows are optical phenomenons formed by sunlight refracting through ice crystals in the clouds.
The only time it can be seen is when the sun is very high in the sky, 58 degrees or more above the horizon, and its light passes through the high-altitude cirrus clouds. It is the sun’s altitude that determines the visibility of the halo.
Also, the ice crystals in the cloud must be hexagonal in shape with their thick plates being parallel to the ground.
