sponsored by psychohistorian.org


Deep Sky Observer's Companion – the online database


Welcome, guest!

If you've already registered, please log in,

or register an observer profile for added functionality.


log in to manage your observing lists























Full database:

Entire DOCdb database of 18,816 objects.



NGC 5011 (11,201 of 18,816)


oc gc pln bn dn gx gxcl ast aka lost




finder chart

altitude today

altitude (year)


½°, , in DOCdb

Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /home/yivumoo/public_html/show_object.php on line 167

show browsing

NGC 5011

NGC 5011, AM 1309-425, ESO 269-65, LEDA 45898, MCG-07-27-042, SGC 130959-4249.9, h 3473, GC 3443

RA: 13h 12m 51.8s
Dec: −43° 05′ 48″

Con: Centaurus
Ch: MSA:933, U2:403, SA:21


(reference key)

Type: galaxy (in cluster), S...

Mag: B=12.4, V=11.33

Size: 2.63′ x 2.238′
PA: 154°

Historical observations

John Herschel

Discovered by John Herschel at the Cape of Good Hope with an 18-inch f/13 speculum telescope. He recorded it as "pretty bright, pretty small, round, gradually brighter in the middle; 15 arcseconds; in a curve of 3 or 4 stars." During the next sweep, he recorded it as "pretty bright, round, small, pretty gradually brighter in the middle; 12 arcseconds. In the middle of an arc of four stars." His final observation reads: "pretty faint, small, round. The middle object in an arc of stars."

Published comments

Burnham's Celestial Handbook

Burnham calls this a 12.9 mag elliptical galaxy in Centaurus, 0.9' x 0.8', pretty bright, considerably small, round with a bright nucleus.

de Vaucouleurs, G. (1956)

De Vaucouleurs (1956) "Survey of bright galaxies south of -35° declination", Mem. Mount Stromlo, No. 13. (photographic study, plates taken with the 30-inch Reynolds reflector, 20-inch diaphragm).

Sulentic & Tifft (1973)

The RNGC (Sulentic and Tifft 1973) notes that this is a 13.0 mag galaxy. Their coded description reads E,R,BM,HISB.

Modern observations

Steve Coe

Steve Coe (1992, The Deep-Sky Observer, Webb Society, Issue 1) observing with a 17.5-inch f/4.5 at 100x notes: "B, pS, somewhat elongated, much brighter in the middle."

Brian Skiff

POSS: closest * at 55" in pa112.


SGC: E1.

15cm - 150x in dk sky: vis as a sub*ar patch 30" diam. no details.

- first of two mod br sm gxs in 80x fld. 140x: 1'.3x0'.9 elong SE-NW with

strong sharp concen to br core & *ar nuc. two *s nr on both E&W; closest of the four just off ESE edge. BS, 3Mar1990, LCO.

25cm - 180x in dk sky: less than 1' diam. *ar nuc inconsp. three *s to W, one

perhaps inv w/neb.

Contemporary observations

Richard Ford

2013 April, 14th Sunday



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 an out of focus marble which is circular in appearance and this galaxy is seen as a vey faint smudge of light at both 57x and 75x.The central nucleus of this galaxy is very condensed and that this galaxy has a soft gently glow of grey-white light.This galaxy measures 3.8'x 3.1'.

Favourite lists

Lacaille's catalogue

The Messier objects

Dunlop's catalogue

The Bennett objects

The Caldwell list

Named DSOs

Object search

First search phrase


Second search phrase

Type of object to include:

open cluster
globular cluster
planetary nebula
bright nebula
dark nebula
galaxy cluster
asterism & stars

The Bug Report

DOCdb is still in beta-release.

Known issues, feature requests, and updates on bug fixes, are here:

> Bug Report


Found a bug? Have a comment or suggestion to improve DOCdb? Please let us know!

> Contact us


DOCdb is a free online resource that exists to promote deep sky observing.

You could help by sharing your observations, writing an article, digitizing and proof-reading historical material, and more.

> Find out more

Everything on DOCdb.net is © 2004-2010 by Auke Slotegraaf, unless stated otherwise or if you can prove you have divine permission to use it. Before using material published here, please consult the Creative Commons Attribution-Non-Commercial-Share Alike 2.5 License. Some material on DOCdb is copyright the individual authors. If in doubt, don't reproduce. And that goes for having children, too. Please note that the recommended browser for DOCdb is Firefox 3.x. You may also get good results with K-Meleon. Good luck if you're using IE. A successful experience with other browsers, including Opera and Safari, may vary.