A large ball of light hovered in the sky over a neighborhood in Wisconsin, competing for the sun's attention! The witness was able to snap a photo, though not when the object was at its largest and brightest. See the photo and submitted to MUFON (case 80330):
My husband and I were driving home (we live in downtown Madison) from the west side of Madison after shopping. I simply noticed the object because of how bright it was, and actually thought it was a tiny chunk of a rainbow forming, although there hadn't been any rain that day, until I noticed quickly how much light it was giving off on its own. It was just sort of hovering, colors changed a bit. I just remember feeling uncomfortable and worried about it. I didn't feel like it should be there, not sure it just made me very anxious I suppose. I'm not completely sure of its exact direction, as we were driving home in a curved pattern (the city is on an isthmus between two lakes). I just know when I first saw it we were in West Madison facing east, the brightness of the glow sort of had little spurts of being brighter and slightly less, and it gave off blue, orange, green, reddish colors, and about half an hour later when we got home I saw it again but this time we had moved east 20 miles and I saw it when I faced about SW. I had been trying to take a picture the whole car ride and couldn't catch it with its moving directions, but this photo I did get was at the end of the event where I last saw it from a block outside my building. You can see the sun setting on the right, and the object glowing it's own light and some of the colors to the left.
What could this be? Based on the description, this does not seem like a "sun dog," but perhaps that is the culprit. Or perhaps this was ball lightning? What do you think?