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.



IC 11 (18,150 of 18,816)


oc gc pln bn dn gx gxcl ast aka lost




finder chart

altitude today

altitude (year)


½°, 2°, 5° 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

IC 11

IC 11

History and Accurate Positions for the NGC/IC Objects (Corwin 2004)

IC 11 = NGC 281. IC 11 is one of Barnard's discoveries that he sent directly to Dreyer; it is not, so far as I know, in any of Barnard's published papers. Though included in Cederblad's catalogue of bright diffuse nebulae (and thus plotted in several atlases), it is not on the sky in Barnard's position. I have not found it on the POSS, nor on plate 89 of Barnard's own collection of comet and Milky Way photographs (Lick Publ. XI; 1913).

However, the triple star mentioned in the description suggests the identity with NGC 281, and makes the RA just 30 minutes of time too small. I suspect a simple transcription error on Barnard's part.

Historical observations

NGC/IC Dreyer (1888, 1895, 1908)

Given as "vF, L, triple * on np corner" with RA 00:13:00 approx. and NPD 34:11. The source is listed as only "Barnard."

Barnard, E.E. (1884)

New nebulae - Small black hole in the milky way - Duplicity of beta-1 Capricorni. Astron. Nachrichten, 108, 369-372. Bibcode: [1884AN....108..369B]

Object "a" at RA 00:46:30, Dec 55:58:00: "Large faint nebula, very diffuse, not less than 10' diameter. A peculiar object with a small triple star on its n.p. border."

Note the large RA difference between it, and IC 11.

Published comments

Cederblad, S. (1946) [VII/231]

Ced 2 (IC 11)

Position (1900): RA 0 15, Dec :+ 56 2

Star: ?

Spectrum of nebula: (not classified)

Classification: Nebulae without definite relation to certain stars - Background veil of a nebulous region (eg. the Taurus veil)

Size: (not given)

Notes: "IC 11. Disc. Barnard. R. Not identified. Probably of class C.2."

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.