sun halo Florida
© Matthew SalvatiA halo around the sun appeared in Central Florida.
Dozens of WESH 2 viewers sent pictures of a mysterious ring or "rainbow" around the sun Wednesday afternoon.

So what was it?

A sun halo is caused by a refraction of sunlight passing through ice crystals in cirrus clouds within the Earth's atmosphere. It forms what looks like a circular rainbow around the sun.

A NASA official told WESH 2 that when ice crystals come together randomly, it forms a halo, which is what was seen today.

The other type of phenomenon that can occur through ice coming together is a "sun dog," which happens when ice crystals form vertically and a bright spot forms on a halo.