The Triangulum Galaxy is a fascinating spiral galaxy that is part of our Local Group of galaxies, along with the Milky Way and Andromeda.
It has a very active star formation rate, which is several times higher than the Andromeda Galaxy. It has many blue regions scattered throughout its spiral arms, where new stars are being born. One of these regions is NGC 604, which is the largest star-forming region in the Local Group, spanning almost 1,500 light-years and containing more than 200 massive stars.

I didn't expect it to show much details from Bortel 8, especially that details are very low in single subs. But it was a nice surprise after the first night stack which showed nice spiral arms, and after night 3 it showed details of nebulae and star forming regions, which lead to extra two nights of imaging to get some more Ha.

WO FLT91, ASI533MC, Optolong L-Pro Filter, Antlia ALPT Dualband Filter, ZWO AM5 mount, ASIAIR plus.

(14h 45′) Broad band and (9h 5′) Narrow band of 300" exposures at gain 101.