sponsored by psychohistorian.org
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.
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."
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.
Ced 2 (IC 11)
Position (1900): RA 0 15, Dec :+ 56 2
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."
The Messier objects
The Bennett objects
The Caldwell list
DOCdb is still in beta-release.
Known issues, feature requests, and updates on bug fixes, are here:
Found a bug? Have a comment or suggestion to improve DOCdb? Please let us know!
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.
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.