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NGC 3227
NGC 3227, Arp 94B, LEDA 30445, MCG+03-27-016, II 29, GC 2089
Type: galaxy (Seyfert 1), Sb
Mag: B=13.52, V=?
Size: 6.165′ x 4.466′
PA: 155°
Historical observations
William Herschel (c.1784)
Synonyms: H II-029
One of a close pair of galaxies due East of Gamma Leonis, the other being NGC 3226. Discovered in 1784 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "Two, about 2' asunder. Both faint, considerably large, round."
Published comments
Supernovae
A supernova erupted in this galaxy in 1983 (12.0v)
Arp (1966)
Together with NGC 3226 listed as No. 94 in Arp's "Atlas of Peculiar Galaxies" (Astrophysical Journal Supplement, vol. 14, 1966.) He remarks "companion on edge of large, very faint loop extending opposite galaxy."
Sulentic & Tifft (1973)
The RNGC (Sulentic and Tifft 1973) notes that this is a 12.0 mag galaxy. Their coded description reads EL,BCTW/DKLNS VFDIFO ARMS.
Sandage, A. et al. (1975) Galaxies and the Universe
G. de Vaucouleurs ("Galaxies and the Universe", Chapter 14 - Nearby Groups of Galaxies) notes that the NGC 3190 Group is a part of the Leo II Cloud Complex. The five brightest members of the NGC 3190 Group are NGC 3227, NGC 3190, NGC 3162, NGC 3193 & NGC 3226.
Van den Bergh (1961)
Van den Bergh (1961, Astronomical Journal, Vol 66, p566) notes that this galaxy forms a pure pair with NGC 3226 2.3 arcminutes away.
de Vaucouleurs, G. et al. (1991) Third Ref. Cat. of Bright Galaxies (RC3)
This galaxy is listed in the "Third Reference Catalogue of Bright Galaxies" as being a bright Seyfert galaxy. The integrated B magnitude of the stellar system (excluding the nucleus) = 11.58, and the B magnitude of the quasi-stellar nucleus = 15.00.
Photo index
Photo Index by Jim Lucyk: The Astrograph 6-7/88 p89, Observer's Guide (Astro Cards) 3-4/88 p21.
Modern observations
Tom Lorenzin
Tom Lorenzin, in the electronic version of "1000+ The Amateur Astronomers' Field Guide to Deep Sky Observing", notes: "11.6M; 3' x 1.2' extent; soft, centerless oblong; EL GAL N3226 (H29-1)(12.7M; 1' diameter) 2' to NNW; soft and round; !good supernova prospects! just W of Algieba (Gamma LEO)."
Contemporary observations
Tom Bryant
2007-05-11 23:00:00
Observing site: Pinnacles overlook
Telescope: C-8
[10h 23m 30s, 19° 52m 0s] The expected bright nucleus of this Seyfert was quite faint.
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Lacaille's catalogue
The Messier objects
Dunlop's catalogue
The Bennett objects
The Caldwell list
Named DSOs
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