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
IC 825
IC 825, LEDA 170209, IRAS F12477-0505
Type: bright nebula
Mag: B=?, V=?
Size: 0.61′ x 0.37′
PA: ?
History and Accurate Positions for the NGC/IC Objects (Corwin 2004)
IC 825. This is probably the object picked up 95 years after Swift's observation as IRAS F12477-0505. Swift's position is not too bad, and his description ("eeeF, pS, R; nearly bet 2 sts east and west; 2nd of 3; [NGC] 4705 and 4718 near") is appropriate -- except for the "nearly bet 2 sts" phrase. This does not match the IRAS galaxy (a peculiar double or triple system) which has a star only to the east. It does, however, fit NGC 4718 perfectly. Is it possible that Swift confused his observing notes between the two objects?
Or is it possible that his "nova" is actually NGC 4718 itself? If so, the mystery phrase becomes "2nd of 3" as N4718 is the third of the trio, not the second.
Occam's Razor: take the IRAS galaxy, but include the identity with N4718 as a questionable possibility.
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.