posted on Nov, 20 2008 @ 12:50 PM
Definitely sun dogs. Sun dogs require more than just ice crystals in the atmosphere. There also must be a vertical or near vertical wind to align
them properly. This is why this phenomenon is so rare. (actually, despite what wikipedia says, my understanding of sun dogs is that it doesn't even
really require ice crystals, but can occur when there are ice crystals OR water vapor in the air, so long as there is a vertical wind.)