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RA: 13h 31m 53.53s
Dec: −33° 14′ 7.4″
Ch: MSA:911, U2:370, SA:21
Type: galaxy (in cluster), E
Mag: B=12.86, V=11.92
Size: 1.949′ x 1.778′
Discovered by John Herschel at the Cape of Good Hope with an 18-inch f/13 speculum telescope. He recorded it as "pretty bright, small, round; first gradually, then pretty suddenly brighter in the middle; 45 arcseconds."
Burnham calls this a 12.6 mag elliptical galaxy in Centaurus, 1' x 1', pretty bright, small, round, first gradually then pretty suddenly brighter in the middle.
The RNGC (Sulentic and Tifft 1973) notes that this is a 13.0 mag galaxy. Their coded description reads R,BM,DKPCHPR,COM PR.
Sandage (1975(Astrophysical Journal, 202, 563-582) notes that this galaxy is a member of the IC 4296 Group. Members include NGC 5140, IC 4296, IC 4299, ESO 383-G 30, ESO 383-G 45 & ESO 383-G 49. Possible additional members include NGC 5161, NGC 5188 & NGC 5193.
The Messier objects
The Bennett objects
The Caldwell list
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