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NGC 7086 (16,759 of 18,816)


oc gc pln bn dn gx gxcl ast aka lost




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NGC 7086

NGC 7086, Cl Collinder 437, C 2128+513, Ocl 214, VI 32, h 2124, GC 4676

RA: 21h 30m 30s
Dec: +51° 35′ 0″

Con: Cygnus
Ch: MSA:1087, U2:57, SA:9

Ref: SIMBAD, Collinder (1931), DAML02, Archinal&Hynes (2003)

(reference key)

Type: open cluster, 22m

Mag: B=9.25, V=8.4

Size: 12′
PA: ?

Historical observations

William Herschel (c.1784)

Synonyms: H VI-032

Discovered in 1788 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "a beautiful cluster of pretty compressed stars 8' or 9' diameter, nearly round, considerably rich."

Published comments

Trumpler, R.J. (1928)

Trumpler (Lick Obs Bul, Vol 14, No. 420) gives the diameter as 7.5' and the class as 1 2 m.

Sulentic & Tifft (1973)

The RNGC (Sulentic and Tifft 1973) notes that this is a 11.5 mag open cluster.

Photo index

Photo Index by Jim Lucyk: Observer's Guide (Astro Cards) 9-10/87 p28.

Modern observations

Walter Scott Houston

Houston notes: "easily picked up in my 5-inch moonwatch scope, this cluster appeared as an ill-defined loose scattering of stars, in a patch 9' to 12' across. Also, what resembles a still coarse cluster is almost tangent to the northwest." John Herschel mentions a red star in the cluster; this star is visual mag 10.2, and 28 of the stars in the cluster are brighter than mag 15.7.

Ancient City Astron.Club (1980)

Listed by the Herschel Club, described as "Counted 50 stars situated within this grouping. Very large and scattered. 8-inch, 48x."

Tom Lorenzin

Tom Lorenzin, in the e-version of "1000+ The Amateur Astronomers' Field Guide to Deep Sky Observing", notes: "9M; 8' diameter; 50-plus 11M and dimmer members; rich, faint and compressed."

Brian Skiff

6cm - nice & sm. 10-15 *s res against hazy bkgrnd. two brtst *s nr center in


15cm - sm mod f cl of 30 *s in a 10' area. only partially res @ 101x w/lg

surrounding haze 25' diam. fairly centrall condensed. BS, 2Jul1971, FtL.

- mod br fairly rich cl well detached from fld @ 50x, where it is

partially res with mod br haziness in core. 80x/140x: 6'-7' diam w/irreg

border, partic due to stragglers W & NW. brtst *s m11, lots coming in

around m13.5, lending to hazy/gran texture in 2'.5 core even @ 140x.

equal pair to W side outside cl. BS, 21Jun1991, Anderson Mesa.

25cm - med-sm and evenly concen. 10' diam w/40 *s. about a doz brtr members.

nice @ 90x.

30cm - 50 *s in sl concen cl. greatest concen on SE side, outliers spreading

N & W. more sharply bounded on NE to SE side. 15' N is a dk hole 25'


Favourite lists

Lacaille's catalogue

The Messier objects

Dunlop's catalogue

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