Up in the sky, sometimes there are amazing things to look up at. If you looked up at the sky today, you likely saw a sun halo; a rainbow ring circling the sun. A sun halo is in the family 22 degree halos, which are formed by hexagonal ice crystals refracting light by 22 degrees. The halos can be caused by the moon as well, and can vary in appearance, such as the case with a Sun Dog, which is even rarer to spot in Fresno.
