[TrevorRoberts]

Thanks, Alexander... your expl. of mirage sounds totally plausible. There was a lot of shimmering in the atmosphere shown up in my 80x binos, so I think I can sleep easily now. I do feel lucky, as it was really an odd looking thing... I'll be on the lookout even more closely in the future for a reappearance. This afternoon's very cloudy, so I don't think I will get another chance later today.

Thanks again... and I'm glad it's not just my 61yo eyes!