Arp 304 is part of the ‘Double Galaxies’ class. It consists of:
NGC 1241 (PGC 11887, VV 334/a and others) – the large spiral located approximately 200 million light-years away in Eridanus.
NGC 1242 (PGC 11892, VV 334b and others) – the smaller AGN galaxy to the left of
NGC 1241. It is located approximately 210 million light-years away.
The double star below these two was designated as
NGC 1243.
Luminance – 26x600s – 260 minutes – binned 1x1
RGB – 12:8:12x300s – 60:40:60 minutes each – binned 2x2
420 minutes total exposure – 7 hours
Imaged October 14th, 15th and 16th, 2023 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/ ... 0/sizes/l/
Dan
