Object name: ARP284
Designation(s): ARP284, NGC7714, NGC7715,
ARP 284 is a pair of interacting galaxies NGC 7715 and NGC 7714 left to right. Arp classifies these under the heading of "infall and attraction" whatever that means. They are located a bit over 100 million light-years away in the constellation of Pisces. NGC 7714 is a starburst galaxy. It has strong H alpha emission though I didn't take it in that light so it's not well seen in my shot. The starburst occurred some 3 to 9 million years ago. Note the odd reddish tidal arm at the lower right that just doesn't seem to fit the rest of the galaxy. The red color is due to mostly H alpha light so it is one huge area of ionized hydrogen. The companion NGC 7715 has H alpha emission and is not a starburst galaxy. It is classed as an irregular galaxy and is not an edge on spiral as it might appear. 7714 is an SB spiral that has been highly distorted by the interaction. Its core has emission lines that classify it as a LINER galaxy, a type with an active black hole in its nucleus.
Related Designation(s):1AXG J233613+0209, 1RXS J233614.1+020921, 2MASS J23361412+0209181, 2MASS J23362217+0209238, 2MASX J23361409+0209180, 2MASX J23362176+0209252, 2MASX J23362210+0209240, 2XMM J233614.1+020919, 2XMMp J233614.1+020919, 87GB 233340.0+015229, AKARI J2336142+020917, APMUKS(BJ) B233348.38+015249.1, ARP 284, ARP 284 NED01, ARP 284 NED02, ARP 284:[MNP2009] C1, ARP 284:[MNP2009] RN, ARP 284:[SSN2005] 02, ARP284, CGCG 2333.7+0153, CGCG 2333.8+0153, CGCG 381-011, CGCG 381-012, CXO J233614.1+020917, CXO J233614.11+020917.8, CXO J233622.1+020923, CXO J233622.14+020923.4, CXOU J233622.1+020923, GEMS NGC 7714:[KFB2009] 02, GEMS_N7714_02, HIPASS J2336+02, HOLM 810, HOLM 810A, HOLM 810B, IRAS 23336+0152, IRAS F23336+0152, KIG 1032:[VOV2007] 039, KIG 1032:[VOV2007] 052, KPG 587, KPG 587 NED01, KPG 587 NED02, KPG 587A, KPG 587B, LGG 479:[G93] 002, LGG 479:[G93] 003, LQAC 354+002 001, MCG +00-60-017, MCG +00-60-018, MRK 0538, NGC 7714, NGC 7714:[KCP2006] 1, NGC 7714:[L2011a] X0001, NGC 7714:[LB2005] X01, NGC 7715, NGC 7715:[L2011a] X0001, NGC7714, NGC7715, NSA 152034, NSA 152041, NVSS J233614+020918, PB 05465, PGC 071868, PGC 071878, RX J2336.2+0209, SSTSL2 J233614.08+020917.9, SSTSL2 J233622.16+020923.5, UGC 12699, UGC 12700, UM 167, UZC J233614.2+020916, UZC J233621.8+020923, VV 051, VV 051a, VV 051b, [dML87] 740, [RRP2006] 51, [S87a] 46A, [S87a] 46B, [TCW2007] 194, [VCV2001] J233614.1+020918, [VCV2006] J233614.1+020918,