sponsored by psychohistorian.org
Type: galaxy (in pair), I
Mag: B=13.1, V=?
Size: 2.187′ x 1.513′
PA: 45°
Synonyms: H II-491
Discovered in 1785 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "pB, pL, iF, lbM."
A supernova erupted in this galaxy in 1970 (15.5p)
Photo Index by Jim Lucyk: Observer's Guide (Astro Cards) 3-4/88 p15.
The RNGC (Sulentic and Tifft 1973) notes that this is a 13.0 mag galaxy. Their coded description reads R,BM,DKLNS.
Houston notes that this galaxy and NGC 2968 make an interesting test pair. The brightest galaxy is NGC 2964 at 11th mag, and NGC 2968 is of 12th mag. He writes: "In my 4-inch NGC 2964 was relatively easy some nights ago, but to find NGC 2968 took much peering, eye resting and eventually a black cloth over my head to block out skylight. Once located, it stayed in view, even without the black cloth."
Observing site: Little Bennett Regional Park
Telescope: C-11
[9h 43m 12s, 31° 56m 0s] Fainter than N 2964, and a bit smaller. The surface brightness of the two galaxies is similar. Burhnam: I/Sp.
Lacaille's catalogue
The Messier objects
Dunlop's catalogue
The Bennett objects
The Caldwell list
Named DSOs
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.