Object name: ARP166
Designation(s): ARP166, NGC0736, NGC0740, NGC0739, NGC0750, NGC0751, NGC0760, NGC0761,
Arp 166 is composed of two interacting elliptical galaxies NGC 750 and NGC 751 (lower). Both are classed E pec though one source says they are two normal E0 galaxies. While the NGC project classes them as E1 and E respectively. Redshift data puts them about 225 million light-years away in the constellation of Triangulum. Arp put the pair in his category; Galaxies (not classifiable as S or E), with diffuse elements. Note the bright short bridge between the two galaxies. Arp didn't mention this feature, however. His only comment refers to a third galaxy saying "Small spiral at end of plume." The galaxy wasn't cataloged at the time of Arp's comment. Now it is known as 2MASX J01572652+3314452. I find little on it, however. It is likely unrelated to Arp 166 however. Did it have anything to do with the plume? I doubt it as the interaction of the two elliptical galaxies could easily account for it though its alignment is suggestive of more than a coincidence. NGC 750 was discovered by William Herschel on September 12, 1784. It's not in either Herschel 400 observing program. He found others in this field that night as well. NGC 751 was discovered by Bindon Stoney on October 11, 1850. He found several others in this field that same night as you will see below.
Related Designation(s):2MASS J01564064+3302366, 2MASS J01564086+3302367, 2MASS J01565467+3316000, 2MASS J01565488+3300546, 2MASS J01573269+3312334, 2MASS J01574717+3321199, 2MASS J01574760+3321195, 2MASS J01574958+3322375, 2MASX J01564087+3302366, 2MASX J01565464+3315596, 2MASX J01565486+3300546, 2MASX J01573274+3312332, 2MASX J01574957+3322377, 2MFGC 01478, AGC 110667, ARK 067, ARP 166, ARP 166 NED01, ARP 166 NED02, ARP166, BMW-HRI J015641.6+330238, CGCG 0153.8+3248, CGCG 0154.0+3246, CGCG 0154.0+3301, CGCG 0154.6+3258, CGCG 0154.6+3258 NED01, CGCG 0154.6+3258 NED02, CGCG 0154.9+3308, CGCG 503-055, CGCG 503-058, CGCG 503-059, CGCG 503-062, CGCG 503-062 NED01, CGCG 503-062 NED02, CGCG 503-064, CGPG 0153.8+3248, CGPG 0154.6+3258, CGPG 0154.6+3258 NED01, CGPG 0154.6+3258 NED02, GALEXASC J015641.07+330236.1 , GALEXASC J015654.76+331559.6 , GALEXASC J015654.96+330053.6 , HDCE 0103 NED001, HDCE 0103 NED002, HDCE 0103 NED003, HDCE 0105 NED002, HDCE 0105 NED003, IRAS F01539+3246, IRAS F01548+3307, KPG 046, KPG 046A, KPG 046B, KUG 0154+327A, KUG 0154+329, LDCE 0129 NED003, LDCE 0129 NED005, LDCE 0129 NED006, LDCE 0129 NED008, LDCE 0129 NED009, LGG 039:[G93] 001, LGG 039:[G93] 002, LGG 042:[G93] 001, LGG 042:[G93] 002, LGG 042:[G93] 003, MCG +05-05-028, MCG +05-05-030, MCG +05-05-031, MCG +05-05-034, MCG +05-05-035, MCG +05-05-036, NGC 0736, NGC 0739, NGC 0740, NGC 0750, NGC 0751, NGC 0760, NGC 0761, NGC0736, NGC0739, NGC0740, NGC0750, NGC0751, NGC0760, NGC0761, NPM1G +33.0059, NSA 130770, NSA 130787, NSA 130789, NSA 130838, NSA 154727, NSA 154728, PGC 007289, PGC 007312, PGC 007316, PGC 007369, PGC 007370, PGC 007395, RSCG 18:[WBJ2013] A, RSCG 18:[WBJ2013] B, UGC 01414, UGC 01421, UGC 01430, UGC 01431, UGC 01439, USGC U087 NED01, USGC U087 NED02, USGC U087 NED03, USGC U087 NED04, USGC U087 NED07, UZC J015640.8+330239, UZC J015654.7+331600, UZC J015654.8+330057, UZC J015732.6+331238, UZC J015749.6+332237, VI Zw 111, VI Zw 123, VI Zw 123 NOTES01, VI Zw 123 NOTES02, VV 189, VV 189a, VV 189b, VV 425, WBL 060-001, WBL 060-003,