
Another Black Eye galaxy shot to add to my collection. Not quite the guiding I was getting earlier in the evening, but it is not too bad, either. Minimal processing done to this one.

I was having a good night of steady seeing and really good guiding (<1.13 arc sec error) for this object and the Pleiades on this night. I went until it was time to flip and the guiding was starting to degrade. 78 minutes worth of subs was good enough to show this object well.

Not too bad for a session from the metro LP zone! Only 96 minutes, but it was enough with these settings to show quite a bit of nebulousity. I used the unity gain setting (11) and that made a big difference in hot pixels and noise. My other shots at a gain of 20 were plagued by hot pixels that SharpCap 3.2 doesn’t seem to be able to deal with very well. I like this much better and there is just as much data buried in there as in the higher gain shots.

Over 4.6 hours of integration with a variety of exposures including 3 min, 2 min and 30 sec sub-images. All were taken with a QHY183c camera at -20C or -15C cooling, an Optolong L-eNhance filter and a Televue TV-85 at F/5.6.
thors-helmet-25×180-g20-o100-lnh-qhy183c_-20C-85f5_6-crop plus thors-helmet-30×120-g20-284×30-g37-o200-lnh-qhy183c_-15C-85f5_6-v2a

The December 26/27 weekend of 2020 was the last imaging session of the year. I managed to bag good data for all the objects on this page. The Heart and Soul Nebulae are still works in progress, though.




I had a little trouble with streetlights and two satellite trails for this shot, but I salvaged what I could. I like the way the 3 minute sub-images are working out, though, now that I’ve tuned the guiding to get usable subs at that exposure setting. That exposure seems to be the sweet-spot for this camera and filter combo at my location.
Below is the image above, but with data add in from my last imaging session of it from a full moon night on Halloween, 2020. I like the way the portrait and landscape versions had diffraction spikes at 90 degrees to each other:
