I'm taking some 4200 second subs of Orion and this is the result from one of them. All the others turned out nice, this one looks weird
I was thinking that if it was a tracking error then surely everything would be blurry. If it's comets then the trails shouldn't end at the stars themselves.
My scope is well balanced so I don't think it would have been anything causing the scope to slip, everything's on tight, looked at the set up and nothing has dropped off or is rattling around (well...more than normal at least).
This is the first time I've seen something that looks like this, so I'm wondering if anyone has any ideas on what happened?