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NGC 4911 (10,866 of 18,816)


oc gc pln bn dn gx gxcl ast aka lost




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NGC 4911

NGC 4911, LEDA 44840, MCG+05-31-093, UGC 8128, II 392, GC 3364

RA: 13h 00m 56.11s
Dec: +27° 47′ 25.5″

Con: Coma Berenices
Ch: MSA:653, U2:149, SA:7

Ref: SIMBAD, Corwin (2004)

(reference key)

Type: galaxy (in cluster), S

Mag: B=13.7, V=?

Size: 1.348′ x 1.174′
PA: 127°

Historical observations

William Herschel (c.1784)

Synonyms: H II-392

Discovered in 1785 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it a group of "Three. The two following are pretty near each other. The sp about 8' distant." The three objects mentioned are NGC 4911, 4921 & NGC 4923. The NGC records it as a group of four, adding NGC 4919, which was discovered by d'Arrest.

Published comments

Sulentic & Tifft (1973)

The RNGC (Sulentic and Tifft 1973) notes that this is a 13.5 mag galaxy. Their coded description reads R,BM,HISB,DKPCHS,.

STScI/AURA press release (2010 Aug 10)

NGC 4911: An "island universe" in the Coma Cluster

Modern observations

Brian Skiff

& M+5-31-94

POSS: m14.5 * 46" SE. MCG gx is IAm? or dE? B\"orngen+: m12 *s are their D31,32: V=11.8,12.0, resp. m14.5 * not meas,

but est looks good.

13cm - just vis @ 60x. forms Ern member of string w/two m12 *s. CBL, 18Jun1984, USNO.

30cm - 1'.25 diam, roughly circ, broad concen. m14.5 * SE off halo. comp gx on SW edge of halo is vf but well defined, yet unconcen. BS, 23Jun1984, USNO.

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