Object name: ARP021
Arp 21 is located in eastern Leo Minor a bit over 400 million light-years distant. It falls into Arp's class: Spiral Galaxies; 3 armed. That much seems fairly certain. Things get rather fuzzy beyond this. For instance, where's the third arm? I really don't see a definite third arm in his image, my image or the Sloan image. Is it the fuzzy detached spur running parallel to the arm wrapping around the bottom of the core ending to the north by a round object? Or is the odd looping feature east of the south going arm that is strangely drawn-out ending in a sudden backward "j" shape? Arp made no comment on this one. NED does say it is a three-armed spiral. It just classes it as a spiral, however.
Related Designation(s):2MASS J11045849+3001385, 2MASX J11045845+3001387, 2MASXi J1104584+300139, ABELL 1185:[HIV2012] 0372, ARP 021, ARP021, ASK 567746.0, CGCG 1102.2+3018, CGCG 155-056, IRAS 11021+3018, IRAS F11022+3017, KUG 1102+302, MCG +05-26-047, NSA 159241, PGC 033487, SDSS J110458.47+300138.4, SDSS J110458.48+300138.5, UZC J110458.5+300138, VV 552b, WBL 300-001, [BFH91] 1102+3018, [DZ2015] 727-03, [HIV2012] 6874, [TTL2012] 314962,