Last Wednesday, on my drive home from work, I spotted a sundog on the way home from work. I finally snapped it when I pulled into the parking lot at Trader Joe’s.
The picture on the left was the best of the set, with the best contrast. The red is clearly visible on the end toward the sun, and the reflection is clearly brighter than the surrounding clouds. The one on the right is actually two minutes earlier, and isn’t as good — except that it looks like there are two sundogs (something I hadn’t noticed when I took the picture). Presumably there was a gap in the cloud of ice crystals, and one half or the other drifted out of alignment.
Coincidentally, that was the same day that aeryncrichton sent me a link to these sky phenomena photos. They’ve got several halos, a pair of auroras, a double rainbow with supernumeraries, and a photo of star trails (which is technically a photographic artifact, but still looks nifty).