Wilson NC sun halo
© Corey Friedman/The Wilson Times
Members of St. Therese Catholic Church noticed a halo around the sun visible in Wilson early Sunday afternoon.

Solar halos form when ice crystals in high clouds refract the sun's light, bending the light and producing a ring shape, according to the University of Illinois at Urbana-Champaign.

The phenomenon can also occur with light reflected from the moon, creating lunar halos.