Sh2-165 is a small bright Hii emission nebula approximately 5,200 light years away in Cassiopeia. Not often imaged I find many of the Sharpless catalog items appealing. As with most Sharpless targets it is rich in Ha with little Oiii, if any.
I used APT for image acquisition and control. This photo was produced using a GSO f8 RC8 steel tube telescope at 1625mm fl. I used a ZWO ASI071MC Pro camera cooled to 15f. A Skywatcher Eq6r Pro mount supported the payload and tracked the stars.
General PixInsight processing to achieve a natural color palette included several steps. These steps included calibration, debayer, star alignment, and integration. Other processes used were gradient correction, background neutralization, and noise reduction. Finally, GHS stretch and curves were applied. 220 subframes at 300s exposures were integrated for this photo.
Astrobin link for Sh2-165 acquisition details.
