Object name: ARP13

Designation(s): ARP13, NGC7448, NGC7463, NGC7464, NGC7465, UGC12313,

This field of Pegasus galaxies lies about 260 million light-years from us and is located in the northwest corner of the Great Square of Pegasus. I centered on the triple ring galaxy II Zw 188/IC 5285. That's how it is described in the CGCG catalog. Unless the core is considered a ring I'm not sure where the third ring is hiding. It is a rather red spiral indicating no new star birth of any significance for some time unless it is hidden in the dense core region. The outer ring is not a nice neat oval but has a rather irregular shape which seems hard to explain. It reminds me of M94 with the large but faint outer ring though M94's ring is more regularly shaped. It was discovered by Stephane Javelle on November 23, 1897.

To the northeast is NGC 7489. It is listed as Sd by NED and Sc by the NGC Project. It is a nice face on spiral. Discovered in 1863 by William Lassell using a 48" reflector, it has a strange elongated feature at the north end. Almost looks like an edge on galaxy. Maybe it is, however it isn't listed in any catalog that I found. But then many of the bright galaxies in this field are anonymous as far as I can tell. If it is part of the galaxy it is a very strange feature. The arms to the south seem oddly cut off compared to those to the north. At the bottom of the image is the flat galaxy 2MFCG 17362. Like all the other cataloged galaxies in the image but the first two, it is a find of the 2 micron infrared survey. The only one with a known redshift. Have these three interacted in the past? Could this account for the odd ring of IC 5285 and/or the odd arm structure of NGC 7489? I found nothing to indicate this has even been looked at let alone answered. In any case, I doubt they have interacted but it is possible.

The field had quite a bit of IFN but my exposure was too short for the poor transparency conditions so I pretty well processed it out not certain which was real and which was a product of varying conditions. All galaxies listed at NED are identified in the annotated image, that's not very many of them. This is a poorly studied region.

14" LX200R @ f/10, L=4x10' RGB=2x10', STL-11000XM, Paramount ME

Related Designation(s):

1RXS J230200.8+155757, 1WGA J2302.0+1557, 2MASS J23000360+1558489, 2MASS J23000361+1558516, 2MASS J23015195+1558547, 2MASS J23015204+1558546, 2MASS J23015355+1558232, 2MASS J23015371+1558255, 2MASS J23020095+1557533, 2MASX J23000358+1558493, 2MASX J23015197+1558546, 2MASX J23015371+1558256, 2MASX J23020095+1557535, 2MASXi J2300035+155849, 2MASXi J2301519+155854, 2MASXi J2301537+155825, 2MASXi J2302009+155753, 2PBC J2302.1+1558, AKARI J2300039+155843, AKARI J2302009+155752, ARK 573, ARP 013, ARP13, CGCG 2257.6+1542, CGCG 2259.3+1542, CGCG 2259.3+1543, CGCG 2259.5+1542, CGCG 453-042, CGCG 453-048, CGCG 453-049, CGCG 453-050, CXO J230200.9+155753, CXO J230200.97+155753.2, HDCE 1227 NED001, HDCE 1227 NED003, HDCE 1227 NED004, HIPASS J2300+15, HOLM 802A, HOLM 802B, HOLM 802C, IRAS 22575+1542, IRAS 22595+1541, IRAS F22575+1542, IRAS F22594+1542, KUG 2257+157, KUG 2259+156, KUG 2259+157A, KUG 2259+157B, KUV 22576+1543, LCSB S2741O, LDCE 1553 NED001, LDCE 1553 NED003, LDCE 1553 NED004, LGG 469:[G93] 001, LGG 469:[G93] 003, LGG 469:[G93] 006, LGG 469:[G93] 007, LQAC 345+015 004, MCG +03-58-018, MCG +03-58-021, MCG +03-58-022, MCG +03-58-023, MCG +03-58-024, MRK 0313, NGC 7448, NGC 7463, NGC 7464, NGC 7465, NGC 7465:[L2011a] X0001, NGC 7465:[LB2005] X01, NGC7448, NGC7463, NGC7464, NGC7465, NSA 150440, NSA 150494, NSA 150497, NSA 150498, NSA 150499, NVSS J230003+155851, NVSS J230200+155751, PG 2259+156, PG 2259+157, PGC 070213, PGC 070285, PGC 070291, PGC 070292, PGC 070295, PRC D-42, RSCG 83:[WBJ2013] A, RSCG 83:[WBJ2013] B, RSCG 83:[WBJ2013] C, SDSS J230003.60+155848.8, UGC 12294, UGC 12313, UGC 12315, UGC 12316, UGC 12317, UGC12313, USGC U830 NED03, USGC U830 NED04, USGC U830 NED05, USGC U830 NED07, UZC J230003.7+155850, UZC J230151.9+155855, UZC J230153.6+155826, UZC J230200.9+155753, WBL 695-001, WBL 695-002, WBL 695-003, [HDL96] 453-005, [HDL96] 453-011, [HDL96] 453-012, [M98j] 253 NED01, [M98j] 253 NED03, [M98j] 253 NED04, [M98j] 253 NED05, [MHH96] J230200+155756, [RHM2006] SFGs 141, [TCW2007] 191, [VCV2001] J230201.0+155753, [VCV2006] J230201.0+155753, [WGB2006] 225918+15430_a, [WGB2006] 225918+15430_b, [WGB2006] 225918+15430_c,