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NGC 4473 (9,622 of 18,816)

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Markarian Chain (NGC 4473)

NGC 4473, LEDA 41228, MCG+02-32-093, UGC 7631 (in Markarian Chain), II 114, GC 3030

RA: 12h 29m 48.95s
Dec: +13° 25′ 46.1″

Con: Coma Berenices
Ch: MSA:725, U2:193, SA:13

Ref: SIMBAD

(reference key)

Type: galaxy (in cluster), E...

Mag: B=11.2, V=?

Size: 4.073′ x 2.511′
PA: 100°

Historical observations

William Herschel (c.1784)

Synonyms: H II-114

Discovered in 1784 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "faint, round."

Published comments

Sulentic & Tifft (1973)

The RNGC (Sulentic and Tifft 1973) notes that this is a 12.0 mag galaxy. Their coded description reads E,EL,BM.

Markarian (1961)

Markarian (1961, Astronomical Journal, Volume 66, p555-557) suggests that this galaxy is part of a slightly bent physical chain of galaxies extending over about 1.5 degrees in the Virgo cluster. The eight galaxies forming this chain are NGC 4374, NGC 4406, NGC 4435, NGC 4438, NGC 4458, NGC 4461, NGC 4473 & NGC 4477. Markarian reaches the conclusion, based on a probabilistic argument, that "the chain of galaxies in the Virgo cluster is not a chance grouping but a real physical system."

Modern observations

Tom Lorenzin

Tom Lorenzin, in the e-version of "1000+ The Amateur Astronomers' Field Guide to Deep Sky Observing", notes: "11.3M; 2' x 1' extent; bright little oblong with brighter center; between SP GALs N4461 15' to SW and N4471 12' to NNE; amidst a real crowd of COM-VIR GALs."

Brian Skiff

POSS: pa92. bar may be real.

7cm - mod br sharply concen gx. lentic in pa100, maj axis about = sep to m11 *

SE. vsm br core rises to *ar nuc, the combination being vconsp @ 50x.

14Apr1993, Anderson Mesa.

15cm - not hard to see in dk location. 1' diam w/*ar nuc and outlying haze.

f * S. FtL.

25cm - elong ~E-W. *ar nuc and irreg shading in haze. FtL.

- hisfcbr, 1'.5x1', lentic halo. vf bar along maj axis. core sm, elong,

and much brtr. sub*ar nuc 2"-3" across. this is among the more

interesting gxs in region. BS, 24Mar1982, Anderson Mesa.

Contemporary observations

Tom Bryant

2008-05-04 22:30:00

Observing site: Pinnacles overlook

Telescope: C-8

[12h 29m 48s, 13 26m 0s] A small elliptical with a bright middle.

Richard Ford

2013 April, 14th Sunday

Location:Perdeberg.

Time:2:33am.

Sky Conditions:The fainter parts of the Milky Way are barely visible.Haziness only visible on the horizon.Atmosphere stable with little interference.

Instrument:12-inch Dobsonian.

This galaxy has the shape of a tennis ball and that this galaxy is circular and well defined.The galactic nucleus of this galaxy is moderately condensed and that this galaxy is seen as a pale glow of faint light.Around the outskirts of this galaxy there are some areas of uneven brightness.The central core of this galaxy is brighter compared to the far outskirts of this galaxy.This galaxy measures 3.1'x 2.5'.

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