Quote:
Originally Posted by ChrisD
You've definitely got some good data there.
I have a C8 at ~F7 which I use for galaxies, and don't have any experience with a C14, but I'm surprised at the star bloat you're getting for a 30 second sub. Have you checked collimation on the C14? How are you achieving focus? Do you use a bahtinov mask or Asiair autofocus with an EAF?
I also agree with alpal, I think there is more detail to be teased out in processing.
Overall though, good work.
Chris
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Thanks Chris and really appreciate your input. I did check the collimation as best as I could (seeing limited of course) and looks pretty good. Nailing focus with the c14 is seriously like shooting at a moving target. When the temp is dropping I do a refocus on nearby star with bahtinov mask every 1hr and even then it’s moved quite a bit. I have a zwo eaf in the back of the cupboard somewhere but still haven’t had time to work out how to get it all connected. Just bing lazy I guess lol.
As I mentioned to Allan my post processing is really basic. No star reduction or masks so unfortunately that’s going to work against me. This was my first time since about Sept22 having my f7 image train going so also got some tilt issues to deal with too (hence the crop image). Anyways I think I’ll have another shot at a repro soon and perhaps even bite the bullet and get PI to get the most from the data.