Yes it was a little windy which blurred the trees. And that is amp glow on the upper left. That was my first suspicion, but then I realized there was a tree over there that was lit by a light on a motion sensor that have have caused some lens flare if it came on and suspected that.
But tonight I did some 20second dark frames and confirmed it's amp glow. I'll probably try shorter exposures to avoid that in the future unless we get any really cold nights this year.
Have another set running now, with fresh NiMH's and no RAW it's been going almost 2 hours and is still clicking away