This past weekend, I saw a lunar halo for the first time.
Apparently this phenomenon, also called a Moon ring or a 22° halo, isn’t uncommon. The effect is caused by the Moon’s light being refracted by ice crystals in the atmosphere.
It looked especially cool with Jupiter appearing visually within the halo with the Moon.
Image: Lunar halo, with Jupiter. Captured with a Pixel 9 phone from Portland, Oregon, on 31 January 2026 by Jennifer Willis.