Asteroid Zoo Talk
Posted July 6, 2014 12:26 AM
looks like a satellite trail to me...so artefact =)
Posted July 7, 2014 1:07 PM
Looks like an airplane - I think. The image has a fainter mirror just below - so if you're seeing one wing light clearly, and one more faintly below it.
Posted July 7, 2014 4:39 PM