sponsored by psychohistorian.org
RA: 21h 24m 24s
Dec: +36° 29′ 0″
Ch: MSA:1146, U2:121, SA:9
Ref: SIMBAD, Collinder (1931), DAML02, Archinal&Hynes (2003)
Type: open cluster, 31p
Mag: B=7.32, V=7
Trumpler (Lick Obs Bul, Vol 14, No. 420) gives the diameter as 8' and the class as 2 2 p.
The RNGC (Sulentic and Tifft 1973) notes that this is a 9.0 mag open cluster.
WDS: ADS14949 and 14953 are inv.
Hoag: br * SW V=8.89/-0.02.
15cm - br but sparse grp not well detached from fld. 8' diam w/35 *s counted
@ 140x. brtst is m9 * isolated on SW. about 10 of the 35 *s are fairly
br, m9-12. 69 Cyg in same 50x/1.2deg fld, 20' NE. BS, 1Jun1989,
25cm - loosely concen @ 90x. 18 *s in 10' area. loose & poor but fairly br.
The Messier objects
The Bennett objects
The Caldwell list
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.