Arp 75 (NGC 702, PGC 6852 and others) is an odd galaxy – possibly two interacting – found in Cetus. Looking at the image closely, there are large, faint arms that extend well beyond the center. This one is part of Arp’s ‘Spirals with high-surface-brightness companions on arms’ class. The companion might be PGC 144370, the galaxy left (east) of NGC 702.
MCG-01-05-040 (PGC 6791 and others) is the interesting, lenticular-looking galaxy at the top right.
See the annotated message for locations of these and quite a few more galaxies.
Luminance – 24x600s – 240 minutes – binned 1x1
RGB – 8x300s – 40 minutes each – binned 2x2
360 minutes total exposure – 6 hours
Imaged November 3rd, 4th, 5th and 6th, 2021 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/52723890057/sizes/l/
LRGB annotated - https://www.flickr.com/photos/dcrowson/52723890002/sizes/l/