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NGC 1961
NGC 1961, IC 2133, Arp 184, LEDA 17625, MCG+12-06-007, UGC 3334, III 747, GC 1167
Type: galaxy (AGN LINER-type), Sb
Mag: B=12.2, V=?
Size: 4.265′ x 2.951′
PA: 85°
Historical observations
William Herschel (c.1784)
Synonyms:H III-747
Discovered in 1788 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "cF, pL, iF, mbM, easily resolvable, some stars visible." In the Notes to the 'Catalogue of a Second Thousand of New Nebulae and Cluster of Stars' a comment reads: "the place of the nebula [III.747] found from this coincides with that of IC 2133 = Bigourdan 385."
Published comments
Arp (1966)
Listed as No. 184 in Arp's "Atlas of Peculiar Galaxies" (Astrophysical Journal Supplement, vol. 14, 1966.) He remarks "two long straight arms or filaments tangent to northeast side of galaxy."
Photo index
Photo Index by Jim Lucyk: Sky&Tel. 12/69 p387.
Shapley, H. & Ames, A. (1932)
Shapley, H. & Ames, A. (1932) A survey of the external galaxies brighter than the thirteenth magnitude. Annals Harvard College Obs., 88(2), 43.
Position given in NGC corrected by that published by Reinmuth's Die Herschel Nebel.
Sulentic & Tifft (1973)
The RNGC (Sulentic and Tifft 1973) notes that this is a 11.5 mag galaxy. Their coded description reads S,DKLNS,DIFKN PDARMS.
Modern observations
Tom Lorenzin
Tom Lorenzin, in the electronic version of "1000+ The Amateur Astronomers' Field Guide to Deep Sky Observing", notes: "11M; 4.3'x 3' extent; fairly bright oblong with little brighter center; axis oriented NNE-SSW; hidden deep in the dark depths of CAM."
Brian Skiff
POSS: halo completely flattened on N flank as per 30cm obs. *? sup immed E
of nuc (m12?); m14 * 40" SE. many f gxs < 30' SE.
UGC: pa(85).
15cm - vf, just vis @ 90x.
25cm - mod br oval, 2'x1' in pa135. diffuse w/o cen condens. mottled here and there. 180x.
30cm - mod br, broad w/confusing * just S of core. 3'.2x1'.5 in pa90. core mottled w/dkr spot and streaks. halo more abrupt on N side.
Ancient City Astron.Club (1980)
Listed by the Herschel Club, described as "use averted vision to make out this elusive object, very faint, fuzzy, slight elongation noted, difficult test. 8-inch, 48x."
Steve Gottlieb
05 42.1 +69 23
17.5 (12/8/90): moderately bright, moderately large, elongated 2:1 E-W, weak concentration, small bright core. A mag 13 star is 30" SSE of center and a mag 12 star is just off the W edge 2.4' from center. Appears to have a dark patch between this star and the core. Forms a pair with Z329-011 7.6' NE (not seen).
8 (10/13/81): faint, moderately large, bright core, diffuse, elongated, star involved.
Contemporary observations
Tom Bryant
2012 1 15 21:44:48
Observing site: Syria, Va
Telescope: C-11
[5h 42m 6s, 69° 23m 0s] A lovely, bright galaxy with mottling like a tiny cluster of stars in front of it. WikiSky: There are some 13mv and fainter field stars superimposed on the galaxy, and the galaxy iteslf shows a few bright HII regions.
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Favourite lists
Lacaille's catalogue
The Messier objects
Dunlop's catalogue
The Bennett objects
The Caldwell list
Named DSOs
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