UGC 3294 (PGC 17156 and others) is a spiral galaxy located approximately 185 million light-years away (https://iopscience.iop.org/article/10.1086/510201/pdf) in Orion. This one is a visual (and imaging) challenge due to the magnitude 6.52 (V) star HD 34959.
Luminance – 25x600s – 250 minutes – binned 1x1
RGB – 8x300s – 40 minutes each – binned 2x2
370 minutes total exposure – 6 hours 10 minutes
Imaged October 28th, 30th and 31st and November 3rd, 2019 from Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG STF-8300M on an Astro-Tech AT12RCT at f/8 2432mm.
LRGB - https://www.flickr.com/photos/dcrowson/49625508117/sizes/l/