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RA: 22h 54m 18s
Dec: +60° 50′ 0″
Ch: MSA:1070, U2:58, SA:3
Ref: SIMBAD, DAML02, Archinal&Hynes (2003)
Type: open cluster, 12m
Mag: B=?, V=13
Synonyms: H VII-043
Discovered in 1787 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "a small cluster of vS stars, considerably compressed and pretty rich."
Trumpler (Lick Obs Bul, Vol 14, No. 420) gives the diameter as 2.2' and the class as 2 2 p.
The RNGC (Sulentic and Tifft 1973) notes that this is a 13.0 mag open cluster.
Tom Lorenzin, in the e-version of "1000+ The Amateur Astronomers' Field Guide to Deep Sky Observing", notes: "13M; 3' diameter; 30-plus faint members; compact and faint little devil."
Lick: pair lies 11' WNW.
25cm - sm, 2' diam at most. few *s res @ 180x. elong N-S. two br *s N and nice
30cm - 238x: small, elong SE-NW due to two br *s on NW (m8.5), and SE (m9.5).
ten *s w/haze. 1'.5x1'.
The Messier objects
The Bennett objects
The Caldwell list
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