Hi everyone, I would appreciate if any of you can help me with this. On the top left part of the picture there is a light trace that I do not know how got there. I took the picture while I’m the middle of the mountain around midnight. There was no lights and although there are sometimes planes flying above this does not look like the trail a plane would make. I used a tripod and a remote trigger so there would be no camera shake.

You will have to zoom the the top left part of the picture to see the light trail.

Thanks for your input!