Notice: session_start(): Ignoring session_start() because a session is already active in /home/yivumoo/public_html/scripts/frag_build_banner.php on line 1
sponsored by psychohistorian.org
Notice: session_start(): Ignoring session_start() because a session is already active in /home/yivumoo/public_html/scripts/frag_build_menu.php on line 1
Notice: session_start(): Ignoring session_start() because a session is already active in /home/yivumoo/public_html/scripts/frag_build_browse_showobject.php on line 1
NGC 5494
NGC 5494, ESO 446-25, LEDA 50732, MCG-05-34-001, SGC 140929-3024.6, h 3560, GC 3802
Type: galaxy, Sc
Mag: B=12.71, V=12.02
Size: 2.29′ x 1.995′
PA: 32°
History and Accurate Positions for the NGC/IC Objects (Corwin 2004)
NGC 5494 appears in Swift's big 11th AN list of new nebulae. Dreyer caught this, so Swift's rediscovery was not given an IC number. See IC 2595 for more about the nebulae that Swift found on the night of 22 February 1898.
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, large, round, gradually brighter in the middle, resolvable. Stars barely seen in the nebula, besides several others about it."
Published comments
Burnham's Celestial Handbook
Burnham calls this a 12.6 mag spiral galaxy in Centaurus, 1.5' x 1.5', pretty bright, large, round, gradually brighter in the middle.
Helwan Obs. Bulletin No 15 (1915)
F, 1.5'x1.5', R, pBstellN, ? spiral.
Helwan Obs. Bulletin No 22 (1921)
F, 1.5' alm.R; spiral wiht sharp stell.N., rather open whorls and several alm.stell.condensations. See HOB 15.
Sulentic & Tifft (1973)
(Sulentic and Tifft 1973) notes that this is a 12.5 mag galaxy. Their coded description reads SC,R,VDIF,LBM,STENUC KNY ARMS,SEV*SUP.
Notice: session_start(): Ignoring session_start() because a session is already active in /home/yivumoo/public_html/scripts/frag_right_bookmarks.php on line 1
Favourite lists
Lacaille's catalogue
The Messier objects
Dunlop's catalogue
The Bennett objects
The Caldwell list
Named DSOs
Notice: session_start(): Ignoring session_start() because a session is already active in /home/yivumoo/public_html/scripts/db_right_object_search.php on line 1
Notice: session_start(): Ignoring session_start() because a session is already active in /home/yivumoo/public_html/scripts/db_right_help.php on line 1
The Bug Report
DOCdb is still in beta-release.
Known issues, feature requests, and updates on bug fixes, are here:
Feedback
Found a bug? Have a comment or suggestion to improve DOCdb? Please let us know!
Help!
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.
Notice: session_start(): Ignoring session_start() because a session is already active in /home/yivumoo/public_html/scripts/db_bottom_maincontent.php on line 1
Notice: session_start(): Ignoring session_start() because a session is already active in /home/yivumoo/public_html/scripts/db_bottom_copyright.php on line 1
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.