r/pics 8h ago

[OC] Circular rainbow in the sky.

10 Upvotes

2 comments sorted by

u/Bonusbag 7h ago

Looks pretty cool. Actually it’s not technically a rainbow. What you’re seeing is a 22-degree halo around the sun.

This happens when sunlight passes through millions of tiny hexagonal ice crystals in cirrus or cirrostratus clouds high up in the atmosphere. The light is bent at an angle of about 22 degrees, creating that perfect circle of light.

A rainbow, on the other hand, is caused by water droplets in the lower atmosphere after rain, and it usually appears opposite the sun rather than surrounding it.

u/kickaxxdestro 7h ago

Oh thank you for the info, I've never seen one just hang around in the sky like that before so I just assumed that it was a very cool rainbow.