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
Jones 1
Jones 1, PN G104.2-29.6, PK 104-29 1, PN VV' 578, PN Jn 1
Type: planetary nebula
Mag: B=15.52, V=15.62
Size: ?
PA: ?
Published comments
Marling, J.B. (1986)
Marling, J.B. (1986) In pursuit of planetaries. Sky & Telescope, Jun, 631.
Modern observations
Brian Skiff
= Jones 1 (~N7710)
15cm - vsl brtning in area @ 80x w/o filters. both UHC & [OIII] effective, the [OIII] the more so; even the DS filter helps. not much to enhance, though. better @ 50x due to lg size. complete annulus w/thin rind; brtr knobs at pa170 & 350 bulging on inside of rim; brtst is Srn one, which has some f *s S of it. ring vwk on Ern periphery. fld mod *ry, but no cen * to mv~13.5. BS, 19Nov1989, Anderson Mesa.
Tom Lorenzin
Tom Lorenzin, in the electronic version of "1000+ The Amateur Astronomers' Field Guide to Deep Sky Observing", notes: "12.1M; 6' x 5' extent; very large, very faint, annular haze; resembles a smaller, fainter Helix (N7293); requires great transparency and N-filter; use field motion to detect; 50' SSE of 5M 72 PEG; the name "Jones 1" is also confusingly applied to PK 164+31.1."
Steve Coe
Steve Coe, using a 13.1" f/5.6, notes: "Jones 1 (PK 104-29.1) Very faint, very large, irregular. This tough planetary was only seen with the UHC filter installed. It has a "Quarter Moon" or "C" shape at 100X."
Photo index
Photo index by Jim Lucyk: Sky & Tel. 3/88 p338
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.