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 6239
NGC 6239, LEDA 59083, MCG+07-35-001, UGC 10577, III 727, GC 4247, GC 5832
Type: galaxy (in cluster), SB
Mag: B=12.9, V=?
Size: 2.344′ x 1.047′
PA: 118°
Historical observations
William Herschel (c.1784)
Synonyms: H III-727
Discovered in 1788 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "cF, S, E in parallel."
Published comments
Sulentic & Tifft (1973)
The RNGC (Sulentic and Tifft 1973) notes that this is a 13.0 mag galaxy. Their coded description reads IRREL,MBM,HISB, DIF ARMS OR FILS N&S.
Modern observations
Tom Lorenzin
Tom Lorenzin, in the e-version of "1000+ The Amateur Astronomers' Field Guide to Deep Sky Observing", notes: "12.9M; 2.1' x 0.8' extent; very faint and small ellipse with brighter middle; axis oriented WNW-ESE."
Brian Skiff
UGC: pa118.
POSS: pa113. irreg outline dur to oblique open two-arm spiral warp(?),
thus dk area E is okay. m14 * 2'.0 N.
15cm - not vis. Roof.
- mod f @ 50x. sharply tapered halo in pa125, 2'.5x1'. mod broad concen
to rounded oval core 0'.8x0'.5, but no sharp nuc. m14.0 * 2' N, halo
def longer than distance to this *. BS, 4Jul1989, Anderson Mesa.
25cm - sm, 1'.25x0'.75 in pa90. sl brtr to cen, but no sharp nuc. Roof.
- vis @ 50x. 140x: modlosfcbr, 1'.5x1' in pa100. broad cen brtning w/more
nrly circ core barely defined from halo. seems irreg, poss dk spot on
E side of center. BS, 23May1982, Anderson Mesa.
30cm - found @ 140x w/in 1'.5\deg circlet of five or six m7.5 *s. fairly f and
sm. 220x: 1'.5x0'.8 in pa110. sl concen to broad core and occas sub*ar
nuc. notsohotso....
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.