As I was going into my office, I happened to look back at the empty parking lot and I'm glad I did... whoa! What a great Sun dog! Too bad I didn't bring my camera to work like I normally do... but I was lucky that the office has a digital camera that I could use to grab this shot. Would have loved to use the D80 on this...
Sun dogs are like rainbows, formed with the help of ice crystals floating in the air. That's the short explanation.
Here's the long one: en.wikipedia.org/wiki/Sun_dog