[url]http://www.abcactionnews.com/news/science-and-technology/911-caller-concerned-about-ring-around-the-sun-a-22-degree-halo-formed-by-ice-crystals[/url] [quote]TAMPA - One woman looked up in the sky Wednesday, and saw a ring around the sun. She called 911 to report the sighting. Listen to the entire 911 call: http://wfts.tv/P7RVrs She likely witnessed a sun halo. It's also known as a 22-degree halo. According to ABC Action News Meteorologist Denis Phillips, a 22° halo is caused by tiny ice crystals contained in high cirrostratus clouds. The sunlight (or moonlight) REFRACTS through the ice at a 22 degree angle. Phillips added that the halo is a common event.[/quote]