Since the clouds are here to stay it seems , I started to re-process captures I made over the last few months.
Also experimenting more and for the first time I did stack without any calibration files. In the case of M106 (from April this year) that worked great because it's in the center of the FOV.
The original capture with all the data is at https://www.cloudyni...lti-narrowband/
There was way less noise because of the not using of calibration files, so I could stretch more. Downside, less contrast.
And I did it "quick and dirty": stacked all the broad- and narrowband data in 1 go with Deep Sky Stacker.
One of the 2 secondary arms was conserved well too. It's the faint vertical lane in the middle left. The second arm is too faint for me to capture.
These jets are hot gasses that are spewed out by the black hole in the center of M106 and only realy showing in narrowband.
Going to see if I can capture the 2nd arm also in the future with the Optolong L-eXtreme filter (this capture is with the L-eNhance). Doubt if it will work cause of my Bortle 6/7 but I'll see