Can someone help me to understand what the problem is with my setup?
This is the 11" RASA, I have not had this problem previously, a year + ago, I had a problem that the lens unit came loose from the front/top plate. I had the scope repaired by Celestron and ever since then my stars look like the attached images. I have messed around with it thinking it was something I was doing wrong. Even though I was using the same setup as prior to the lens coming loose. I ended up putting it away. I did buy the Hotech Laser Collimator (yes that ridiculously expensive one) and made the adjustments.
I just set it up again with the plans of using the ASI1600 and NB, so I have not used this camera before on the RASA. Attached is a stack of 1 second exposures. My stars are really messed up and I'm not sure what I should be looking for. I did try rotating the camera and the odd shape stars rotate with the camera.
If this could be camera tilt, how much would it need to move? I did try playing around a little with that, no luck.
Thank you in advance of any assistance.