Object name: ARP065

Designation(s): ARP065, NGC0079, NGC0080, NGC0083, NGC0085, NGC0085B, NGC0086, NGC0093, NGC0094, NGC0096,

Arp 65/NGC 90 is located in the southwest corner of Andromeda. It is a member of a rather large group of galaxies. I find various names for it but none include all of the galaxies. The group about 240 million light-years from us give or take a few million. I've noted the distances in the annotated image.

Arp 65 is rather near the center of the group. It is in Arp's atlas under the category: Spiral galaxies with small, high surface brightness companions. Arp's comment on this one reads: "Position of open spiral. Comps. lie off projected ends of both spiral arms." That would indicate he is talking about galaxies beyond the extended arms. I see one to the southeast that seems in line with the southern arm. I see two for the other arm but they lie below the arm though there's a slight bend in the arm that might lead to the first and dimmer of the two. I found nothing in the literature on this subject. Note that both spiral arms are double.

The galaxy is classified as SAB(s)c pec by NED, SAB(s) by the NGC project and SAB(s)b? pec by Seligman. It is listed as being discovered by William Parsons by the NGC project in 1854, but Seligman credits his assistant R. J. Mitchell as finding it on October 26, 1854. I measure its size, thanks to its long drawn out arms as 200,000 light-years. So while its diameter is almost that of NGC 80 its mass is far less.

Some sources consider it as interacting with NGC 93 to the east. NED and the NGC Project classifies it as S? while Seligman says Sab? pec. The NGC project also credits it to William Parsons (Earl of Rosse) while Seligman again says R. J. Mitchell on the same night as he found Arp 65.

South of these is a star that is listed as NGC 91. Again there's confusion over who found it. NGC Project credits Lord Rosse in one place and Herman Schultz in another. Schultz was director of Uppsala observatory. I find no connection with Lord Rosse. But Seligman credits it to R. J. Mitchel on the same night as the other two. Since it is a mistake in the first place I suppose all this doesn't much matter.

There are 9 other NGC objects in this image. So here we go.

NGC 79 in the upper right corner is classified as E by NED, as E-So by the NGC project, and E0? by Seligman. All agree it was discovered by Guillaume Bigourdan on November 14. 1884.

NGC 80 is by far the most massive galaxy in the image. I measure it as a bit over 210,000 light-years across. NED and the NGC Project classifies it as SA0-: while Seligman says E/S0?. It was discovered by John Herschel on August 17, 1828.

NGC 81 is a tiny galaxy that NED doesn't even try to classify, the NGC project says simply S while Seligman says S0?. The latter seems about right to my eye. It was discovered by Ralph Copeland on November 15, 1873. He was one of Lord Rosse's assistants but I can't confirm he found this one while working for the Lord though he did find most of his NGC objects there.

NGC 83 is another rather large elliptical. NED classifies it as E but Seligman says (R)S0?. It was discovered by John Herschel the same night as NGC 80.

NGC 85/NGC 85A is listed by NED and the NGC Project as S0 but Seligman again disagrees saying SB0/a? It was discovered by Ralph Copeland the same night as he found NGC 81.

NGC 85B/IC 1546. I'm sort of cheating here as the IC number is most likely its main number. Many catalogs don't recognize it under the NGC number though NED does so I'm going with it. It is classified as S? by NED (The NGC Project doesn't recognize it as an NGC object) while Seligman recognizes it only under the IC number and classifies it as Sbc?. It was discovered by Stephane Javelle on November 20, 1897.

NGC 86 is classified by NED as Sbc, S? by the NGC Project and S0/a? by Seligman. Flip your three-sided coin on this one. It was discovered by Guillaume Bigourdan the same night as he found NGC 79, November 14, 1884.

NGC 94 is listed as S0 by NED and the NGC Project but as S0(s)a? by Seligman. It was discovered by Guillaume Bigourdan the same night as the others in this group but for NGC 96.

NGC 96 is not classified by NED, the NGC Project says S0 while Seligman says SB0? It too was discovered by Guillaume Bigourdan but on October 24, 1884.

Whew, that's 12 NGC objects in a 0.2 square degree field and I'm not near the Virgo Cluster either. Details on other galaxies are in the annotated image when NED had redshift data.

This image dates back to September 2008 when my image processing software and skills were limited. I need to reprocess this one but for now, this will have to do.

Arp's image:

14" LX200R @ f/10 L=4x10' RGB=2x10'x3, STL-11000XM, Paramount ME

Related Designation(s):

2MASS J00210285+2233597, 2MASS J00211082+2221254, 2MASS J00212241+2226009, 2MASS J00212555+2230423, 2MASS J00212856+2233232, 2MASS J00212902+2230211, 2MASS J00215123+2223575, 2MASS J00215138+2223598, 2MASS J00220322+2224291, 2MASS J00221353+2228589, 2MASS J00221772+2232465, 2MASX J00210283+2233590, 2MASX J00211086+2221261, 2MASX J00212239+2226011, 2MASX J00212557+2230421, 2MASX J00212858+2233229, 2MASX J00212903+2230209, 2MASX J00215140+2224001, 2MASX J00220321+2224291, 2MASX J00221351+2228592, 2MASX J00221769+2232462, 2MASXi J0021028+223359, 2MASXi J0021110+222126, 2MASXi J0021225+222605, 2MASXi J0021255+223041, 2MASXi J0021285+223322, 2MASXi J0021290+223020, 2MASXi J0021515+222400, 2MASXi J0022032+222429, 2MASXi J0022135+222858, 2MASXi J0022177+223246, 2MFGC 00256, AGC 100184, AGC 100187, ARP 065, ARP065, CGCG 0018.4+2218, CGCG 0018.6+2205, CGCG 0018.8+2209, CGCG 0018.8+2214, CGCG 0018.9+2214, CGCG 0018.9+2218, CGCG 0019.2+2208, CGCG 0019.4+2208, CGCG 0019.6+2212, CGCG 479-003, CGCG 479-006, CGCG 479-008, CGCG 479-009, CGCG 479-010, CGCG 479-011, CGCG 479-013, CGCG 479-015, CGCG 479-017, GALEXASC J002102.61+223359.5 , GALEXASC J002110.77+222122.4 , GALEXASC J002125.51+223046.8 , GALEXASC J002128.52+223324.0 , GALEXASC J002128.83+223022.1 , GALEXASC J002151.56+222402.2 , GALEXASC J002213.53+222859.2 , GALEXASC J002217.67+223247.9 , GALEXMSC J002102.75+223359.3 , GALEXMSC J002111.07+222124.0 , GALEXMSC J002128.89+223022.6 , GALEXMSC J002151.65+222401.5 , GALEXMSC J002213.52+222859.6 , GALEXMSC J002217.80+223248.3 , HDCE 0014 NED005, HDCE 0014 NED006, HDCE 0014 NED007, HDCE 0014 NED008, HDCE 0014 NED009, HDCE 0014 NED010, HDCE 0014 NED012, HDCE 0014 NED014, IC 1546, IRAS F00186+2209, IRAS F00188+2214, IRAS F00194+2208, LDCE 0017 NED006, LDCE 0017 NED007, LDCE 0017 NED008, LDCE 0017 NED009, LDCE 0017 NED010, LDCE 0017 NED011, LDCE 0017 NED013, LDCE 0017 NED015, MCG +04-02-003, MCG +04-02-004, MCG +04-02-005, MCG +04-02-007, MCG +04-02-008, MCG +04-02-009, MCG +04-02-011, MCG +04-02-012, MCG +04-02-014, NGC 0079, NGC 0080, NGC 0083, NGC 0085, NGC 0085A, NGC 0085B, NGC 0086, NGC 0090, NGC 0093, NGC 0094, NGC 0096, NGC0079, NGC0080, NGC0083, NGC0085, NGC0085B, NGC0086, NGC0093, NGC0094, NGC0096, NPM1G +22.0015, NPM1G +22.0017, NSA 126739, NSA 126744, NSA 126759, NSA 126761, NSA 126765, NSA 126766, NSA 126786, NSA 126793, NSA 126799, NSA 126808, NVSS J002123+223037, NVSS J002129+223020, PGC 001340, PGC 001351, PGC 001371, PGC 001375, PGC 001382, PGC 001383, PGC 001405, PGC 001412, PGC 001423, PGC 001429, SRGb 063.028, SRGb 063.039, SRGb 063.040, SRGb 063.041, SRGb 063.042, SRGb 063.053, SRGb 063.058, SRGb 063.060, SRGb 063.063, SSTSL2 J002122.36+222601.3, SSTSL2 J002151.33+222400.2, SSTSL2 J002203.20+222429.1, UGC 00203, UGC 00206, UGC 00208, UGC 00209, USGC U013 NED02, USGC U013 NED03, USGC U013 NED05, USGC U013 NED06, USGC U013 NED07, USGC U013 NED08, USGC U013 NED11, USGC U013 NED12, UZC J002103.0+223400, UZC J002111.0+222127, UZC J002122.5+222603, UZC J002125.7+223044, UZC J002128.7+223322, UZC J002129.1+223023, UZC J002151.5+222400, UZC J002203.4+222429, UZC-CG 005 NED01, UZC-CG 005 NED02, UZC-CG 005 NED03, UZC-CG 005 NED04, UZC-CG 005 NED06, UZC-CG 005 NED07, WBL 009-002, WBL 009-003, WBL 009-004, WBL 009-005, WBL 009-006, WBL 009-007, WBL 009-009, WBL 009-010, WBL 009-011, [M98j] 004 NED02, [SLH97] S01, [SLH97] S02, [SLH97] S03, [SLH97] S04,