M31 Andromeda galaxy

Oct 8th, 2020

Another processing option

Oct 1st, 2020

2 h 42 m

Finally, I got a 500 mm lens for larger objects (with my 200/1000 Newtonian and no coma corrector, you can't really capture extended deep-sky objects). The f/6.3 aperture, of course, requires much longer exposure times to gather enough signal. Here is the result of two nights—I could have managed it in one, but the mount performs poorly near the zenith, resulting in a lot of rejected frames.