Object name: ARP052
Arp 52 is one of the dud Arp galaxies, at least for my system. I needed a good night that would support 0.5" imaging. I've had more than usual of such nights but not the night I imaged it so I settled for my standard 1" pixel size. Arp 52, CGCG 421-027, doesn't have any classification that I can find nor could I find a paper on it. It seems no one but Arp finds it interesting. He classed it as a spiral with a high surface brightness companion on its arm. That's the blue dot at the 1 o'clock position. Though it appears it may be a foreground galaxy. I find no separate identity or info for this companion. It's just that most catalogs show "Arp 52 as a galaxy with companion". Without further data, there's no way to know if the two are related or not. Both are blue which might indicate they are interacting and thus have triggered the creation of a lot of young super hot blue stars. But without any literature to check there's no way to know.