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NGC 6192 (13,883 of 18,816)


oc gc pln bn dn gx gxcl ast aka lost




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NGC 6192

NGC 6192, Dunlop 483, Cl Collinder 309, Cl VDBH 194, COCD 379, C 1636-432, Bennett 79b, h 3641, GC 4224

RA: 16h 40m 24s
Dec: −43° 22′ 0″

Con: Scorpius
Ch: MSA:1461, U2:407, SA:22

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

(reference key)

Type: open cluster, 12r

Mag: B=?, V=8.5

Size: 9′
PA: ?

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Sketches  (1)

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Historical observations

Dunlop, James (1827)

James Dunlop discovered this object from Paramatta, New South Wales, and included it as No. 483 in his catalogue of 1827. Using a 9-inch f/12 telescope, he described it as "a cluster of very minute stars, of a round figure, about 4' diameter, following v Normae."

John Herschel (1847) Cape Observations

Observed by Sir John Herschel at the Cape of Good Hope with an 18-inch f/13 speculum telescope. He recorded it as "a coarse but rich cluster of stars 11.12th mag, which leaves dark lines unoccupied, forming sections (see fig 4, Plate V)." On a second occassion he called it "Cluster VII, pretty rich, irregularly round, gbM, 10', stars 12..14th mag, a straggling group."

NGC/IC Dreyer (1888, 1895, 1908)

The NGC records it as "pretty large, pretty rich, irregularly round, consisting of 11th-14th magnitude stars."

Published comments

Raab, S. (1922)

Raab, S. (1922) A research on open clusters. Lund Medd. Astron. Obs. Ser. II, 28, 1.

Discussed, based of F-A plates.

Melotte, P.J. (1915)

A catalogue of star clusters shown on Franklin-Adams chart plates. Mem.R.A.S., 60(5), 175-186.

Bailey, S.I. (1913)

Bailey, examining a Bruce plate (Harvard Annals, Vol 72, No 2), describes it as "Milky Way, coarse cluster of about 50 pretty bright stars, diameter 10'."

Trumpler, R.J. (1928)

Trumpler (Lick Obs Bul, Vol 14, No. 420) gives the diameter as 7' and the class as 1 3 m.

Sulentic & Tifft (1973)

The RNGC (Sulentic and Tifft 1973) notes that this is a 8.5 mag open cluster.

Modern observations

Steve Coe

Steve Coe, observing with a 17.5" f/4.5 at 100X, notes: "Bright, pretty large, pretty rich, somewhat compressed, 40 stars with many dark lanes in the cluster at 135X.

Contemporary observations

Auke Slotegraaf


In 11x80 binoculars, a large 90 triangle lies to the east of the cluster, the brightest star in the triangle being Mu Normae. The open cluster lies just to the west of the star opposite the hypotenuse. The cluster appears as a nebulous patch, but does not give the appearance of being round. As your eyes rove around the field of view, glimpses of the cluster show it to be irregular - it doesn't, for example, look like a globular. No individual stars can be seen. Very conspicuous with averted vision.


A 15.5-inch reflector shows that it is moderately spread out and has quite a large brightness range. The most condensed parts of the cluster seem to lie in a large triangular shape, which itself consists of an equilateral triangle to the south and a narrow strip of stars to the north. In all, there are about 20 tenth-magnitude stars and some fainter ones.

Magda Streicher

1979 May 14

Location: Campsite Farm. (South 23 16 East 29 26)

Sky conditions: clear.

Instrument: Meade 8 inch (Super wide-angle 18mm eyepiece.

Date: 14 May 1979.

ASSA-DSO - Report H

Pretty, large and loose, open cluster with a selection of bright and faint stars. Irregular in shape, to me it resembles the figure of an insect. One leg projects quite prominently to a more busy side of this tick-like figure.

(no date)

12-inch f/10 SCT (EP: 2-inch 32mm SW 95x 42' fov; 2-inch 14mm UW 218x 23' fov)

Pretty, loose, rich open cluster with a selection of bright and faint stars. Irregular in shape and slightly elongated north to south. To me the stars resemble the figure of an insect, the one leg projects quite prominently east to a more busy side of this tick-like figure. The inner section, which is rich in stars, could also be a curly flower bud, and the brighter stars even looks like the image of a number 6. A pretty cluster that displays a wealth of detail in its shape. Short strings, quite outstanding against the background, and mingle well with a busy star field. Add. This is one unique cluster, the stars situated in the shape of a small baby scorpion. Small groupings of stars more or less the same brightness figure in the shape of the head NW, and body with a quite little upright tail from south to east. In the field of view 12" S/C 95x 52. FOV, about 20' to the west 5.8 V1 Scorpiae, show of with a string of faint stars going east towards the cluster. (Mag 8.5; size 7.0'; number of stars = 60. )

Richard Ford

2012 August, 18th


Sky Conditions:The fainter parts of the Milky Way are barely visible.Haziness only visible on the horizon.Atmosphere stable with little interference.

This open cluster is well detached with bright 10th to 11th magnitude stars and that this cluster has an irregular appearance which this cluster is arranged in the shape of an S.There are bright and faint stars mixed together in this cluster.In overall all the stars in this open cluster is slightly concentrated towards each other.Chart No.340,NSOG vol.2.

2012 August, 18th


Sky Conditions:The fainter parts of the Milky Way are barely visible.Haziness only visible on the horizon.Atmosphere stable with little interference.

Instrument:12-inch Dobsonian.

This open cluster consisting of 12th magnitude stars are strongly concentrated towards each other,is well detached from the background,and looks like a hazy patch.Chart No.340,NSOG Vol.2.

Favourite lists

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The Messier objects

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