Eastern Veil Nebula Revisited & Reprocessed
10 Oct 2023My processing techniques have improved a lot recently, so I’ve reprocessed this old data and got what I believe is a better processed version. My new technique is documented here
My processing techniques have improved a lot recently, so I’ve reprocessed this old data and got what I believe is a better processed version. My new technique is documented here
My wife has been nagging me for ages to take a pic of the Moon. I’d always pushed back because to be honest, I wasn’t at all interested. To me, it’s just a big source of light pollution for my deep space imaging. But, I relented. I pointed the camera at the moon at got 10mins worth of very short exposures. I didn’t even bother removing the nebula filter. The next day, I spent ages working out the correct workflow for planetary/lunar because it’s really quite different from deep space. I settled on using PIPP for cropping and converting to avi, feeding into Autostakkert for stacking. The big hurdle for me was getting PIPP/Autostakkert to accept my bayer FITS files. No matter what I didn, they wouldn’t debayer properly. Eventually, I used Siril to debayer my FITS prior to feeding into PIPP/Autostakkert which worked wonderfully. The end result isn’t too bad for my first attempt, even if I do say so myself. However, I’ve now been seduced by some of these “mineral” Moon pics I see online where they’re full of colour rather than being bland greyscale blobs, so I’ll be trying this again at the next full moon, but this time I will remove my nebula filter.
I’m on a roll now! Yet another clear night so I thought I’d pick a target that I could image immediately and get a good number of hours on without staying up too late. The two choices were Wizard Nebula or Pacman Nebula. Wizard rises a good 30mins before Pacman, so Wizard it is. I managed to get a good polar alignment and had good guiding on this, so I just let it rip for a few hours. I didn’t get much OIII data (for some reason) so the image is mostly Ha which is why it’s so red. I think I’ll need a lot longer integration time if I want to collect more Ha data. Anyway, it looks good as-is so I’m happy
I had another clear night last night and managed to get a few hours on two targets. I’d previously tried this target before on my IMX484 based camera and I’d barely caught sight of it. My new camera, however, got some good data. I was able to process this and get something interesting but it could do with another few hours of data to do it justice.
I finally had a clear night to test my new camera and it did not disappoint. This is the best, least noisy image I’ve taken yet. I chose Eastern Veil nebula because I’d taken that before so I could compare it directly to my old camera. I plan to make this the first panel in an 8 panel mosaic to try to get the entire Cygnus loop, if I get enough sky!