Object name: ARP335
ARP 335 (NGC 3509) is a possible double galaxy that Arp put in his Miscellaneous category, M82 being the well-known galaxy in this classification. Looks to me it would have fit in his one heavy arm class. Ned and some other sources consider it a double galaxy. I thought maybe the other galaxy was the reddened blob directly north of the obvious nucleus. But its position isn't recorded as a separate galaxy in NED that I could find. Turns out that on the inside edge of the heavy arm there's a blue blob I considered a star cloud in the arm but most sources list it as a "galaxy within the bounds of NGC 3509." Whatever it is, I marked it in the ID image with its distance of 0.37 billion light-years, same as Arp 335. What about the two I have marked as KPG 265A and B? Well, it seems the Kanipe-Webb book on the Arp galaxies notes them in their book. NED says of 265B that it is the southern component of the double galaxy. But NED lists no northern component unless they consider that the main galaxy. NED says most of the parts it lists inside the galaxy are just parts of the same galaxy. Apparently, that included KPG265A. I've marked its NED position. Problem is the Kanipe Webb book shows KPG265A where NED has KPG265B and shows the orange blob I've marked with a question mark as KPG265B. So who is right? I have no idea. Maybe it is three galaxies. The obvious core defining one, 265B defining one that streams west from the bright knots and a third whose core is the orange blob and streams east creating the huge arm? Guess this is why Arp put it in his miscellaneous category. His only comment is: "Large luminous system."
Related Designation(s):2MASS J11042354+0449430, 2MASX J11042356+0449428, AKARI J1104240+044950, ARP 335, ARP 335:[MNP2009] RN, ARP335, CGCG 038-109, CGCG 1101.8+0506, IRAS 11018+0505, IRAS F11017+0506, KPG 265, LDCE 0775 NED002, MCG +01-28-033, NGC 3509, NVSS J110423+044941, PGC 033446, SDSS J110423.55+044943.0, UGC 06134, USGC U350 NED07, UZC J110423.6+044943, VV 075, [M98j] 111 NED01, [THW2016] J166.0991+04.8293, [THW2016] T3-5016,