sponsored by psychohistorian.org
RA: 22h 20m 24s
Dec: +58° 05′ 0″
Ch: MSA:1071, U2:57, SA:3
Ref: SIMBAD, Collinder (1931), DAML02, Archinal&Hynes (2003)
Type: open cluster, 23m
Mag: B=9.2, V=8.4
NGC 7261. JH's cluster is probably the scattered group of pretty bright stars, stretching nearly north-south across an area 15' by 10', about 20 seconds preceding his position for the bright star on its following edge. There is a smaller core (7' by 5') of generally fainter stars about five arcminutes north-northeast of the center of the larger group. Is this perhaps a background cluster?
Trumpler (Lick Obs Bul, Vol 14, No. 420) gives the diameter as 7' and the class as 2 2 p.
The RNGC (Sulentic and Tifft 1973) notes that this is a 10.0 mag open cluster.
Tom Lorenzin, in the e-version of "1000+ The Amateur Astronomers' Field Guide to Deep Sky Observing", notes: "9M; 7' diameter; 20-plus faint members; just barely an cluster; not overly impressive; inside the isoceles triangle formed by Delta CEP; Zeta CEP and Epsilon CEP; 40' to ESE is cluster N7281."
6cm - 10 *s w/haze. brtst * on E edge.
25cm - mod f. 4'x2' elong N-S. sev brtr *s w/20 fntr ones. some threshold haze.
a cluster noted ~45' E = N7281.
30cm - 30+ *s in unconcen cl elong N-S. N&S ends curve a little Wward; br * on E
leads an arc. 8'x5' w/more *s trailing off to S. ten brtr *s. sketch in
notes. CBL, 11Oct1977, Roof.
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.