Was it a green laser? They are incredibly bright and are the bane of Astrophotographers. They are normally banned at star parties because they tend
to ruin exposures.
I posted this back in May I think about an image I had taken of what looks like a green meteor (satellite?)...anyways, there were lots of ideas of
what I had caught, but I saw this today and thought that maybe it helped explain my image. Thanks for reading
I had a look of the biggest available resolution of the pic of this you have on Flickr. I'm calling a plane, since for the whole lenght of the trail,
there are spots of light included along with it, which suggests navigation lights.