Hi all,Wondering if you can help me sort out these comb-like streaks in the Ha data I’ve collected on the Pacman.I’ve not seen these streaks on any other Pacman I’ve searched for on-line, so I am assuming it is not data but some kind of artifact. If it is data, I will leave it in. But if it is an artifact, I will try to process it out, but I can’t figure out what is causing it.I have used the gear in question many times and have not seen it before or since, but it is on all the Ha subs of the Pacman taken over two different nights, Oct 6 & Oct 13.The subs are 300” long, taken with a Vixen 200mm f/4 with Nexus 0.73 reducer, so 600mm f/3, Baader f/3 Ha 3.5nm filter, ASI2600mm camera, ZWO AM5 mount.A few considerations:- The stars look fine, so the mount is not stalling
- The subs from the OIII and SII filters are fine
- Ha from other objects taken about the same time is fine, so I don't think is the filter
- I don't think it's a light leak from its position in the frame, and I don't see it in any other uses. Thansks!
