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NGC 2669 (5,627 of 18,816)

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NGC 2669

NGC 2669, Cl Collinder 199, Cl Collinder 202, Cl VDBH 52, Cl Harvard 3, COCD 209, h 3140, GC 1701

RA: 08h 46m 19s
Dec: −52° 56′ 6″

Con: Vela
Ch: MSA:981, U2:425, SA:25

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

(reference key)

Type: open cluster, 33m

Mag: B=6.35, V=6.1

Size: 20′
PA: ?

Historical observations

John Herschel (1847) Cape Observations

Discovered by Sir John Herschel at the Cape of Good Hope with an 18-inch f/13 speculum telescope. He recorded it as "cluster VIII class. A large, poor loose cluster of stars, 10..13th mag."

Published comments

Union Observatory Circular (c.1919)

Described in Union Obs. Circulars, 45-76, p 50. "Nebulae, clusters, etc. on Sydney Plates" as " {h3140} RA 8h 43 -44m, Dec -52° 35' (1875) Cluster of 50 stars, 10-13 mag., covering 100 square minutes of arc, whilst the average for the region is about 15 stars. An unusual field to blink on, and it represents probably a real aggregation of stars. This cluster is undoubtedly h 3140 when h is corrected by +1° in Dec., whilst the Harvard cluster 2632b at 8h 37.5m -52° 34 would be NGC 2669 Sufi, with an error in NGC of -1°."

Trumpler, R.J. (1928)

Trumpler (Lick Obs Bul, Vol 14, No. 420) gives the diameter as 14' and the class as 1 3 p. He notes: "Declination of the New General Catalogue corrected by +1 degree."

Shapley, H. (1930) "Star Clusters" Harvard Obs. Monographs No. 2

diam 7', 35 stars, mag of 5th star = 10.4

Hogg, A.R. (1965)

"Cat. of Open Cl. south of -45° Decl.", Mem. 17 Mnt Stromlo Obs.

Mostly brighter stars.

Vogt, N. & Moffat, A.F.J. (1972/3)

Vogt. N. & Moffat, AFJ (1972), "Southern Open Star Clusters II." Astron.Astrophys.Suppl., 9, 97-131. [image, table]

"On a photograph this cluster appears like a relatively loose stellar aggregate. The photomotry shows that it is of intermediate age containing blue and red giants as possible members." The conclude the distance as 1.04kpc and earliest spectral type as B5.

Sulentic & Tifft (1973)

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

Modern observations

Harrington, Phil

Harrington writes that this 6th mag cluster "contains about 40 stars, with the brightest half dozen forming a trapezoidal pattern. On its own, NGC 2669 is not especially impressive, but add to it the whole magnificent region and you have a ringside seat to a wonderful star-studded show for binoculars."

ASV Journal (1971)

ASV Journal Vol 24 No 3 June 1971: "a dozen stars visible in 2-inch 64x."

Brian Skiff

15cm - mod f cl @ 50x mod well isolated from fld. 140x: 30 *s in irreg-bounded

8' area. m10.5 * and five others in concen grp elong N-S south of

center. BS, 21Feb1990, LCO.

Contemporary observations

Auke Slotegraaf

1998 April 27

1998-04-27/28, 11x80 tripod-mounted binoculars, Die Boord. Seeing average, transparency average, dew. "Two unconnected scatterings of faint (northeast) and very faint (southwest) stars, 7.5' apart. Only 7 stars are seen, and none in the gap between them, which is large in comparison to the stellar groupings. There is no reason to suspect these to be a cluster."

1998 January 31

1998-01-31/02-01, Sat/Sun. Unitron 4-inch f/14.7 refractor. Die Boord. Delicate cluster in a field with several bright but distracting stars. The cluster is constrained by three 9th mag stars on the west, and two slightly brighter ones north-east, and measures 4 arcmin across. These "boundary stars", although shown as part of the cluster on the U2 chart, do not look in the eyepiece as members. The stars within the cluster are irregularly clumped, with one bright star on the eastern edge. The cluster has no clear outline; the members seem concentrated in two broad groupings, in which a few brighter stars are surrounded by several fainter lights. More aperture, please. Quality of this obs: 50%.

Magda Streicher

2010 February 15

Location: Alldays

12-inch f/10 SCT (218x)

This is show off a clear "V" shape pointing towards the south. What actually holds my eye was the knot of faint stars in the so called north-eastern leg. The group Van den Bergh-Hagen 52 probably forms the northern part which extends more away from the southern group. A lovely cluster with character.

1 Jan 2008

NGC: 2669 - VELA

Open Cluster

RA: 08h46m22s - DEC: -52o56'51"

Magnitude: 20' Size: 6'

Tel: 12" S/C 76x - 218x - Date: 1 Jan 2008 Site: Alldays - good

Very rich cluster, spraying its members into the far end of the field of view. I would say it seems to me more compact and busy with faint stars in the northern part of the cluster. A eye catching tripesium is obvious and situated towards the eastern side inside the cluster.

Richard Ford

2012 February 19, Sun

Location:Perdeberg.

Instrument:12-Inch Dobsonian Reflector Telescope.

Time:1:55.

Sky Conditions:The fainter parts of the Milky Way are barely visible.

Transparency Of the Sky:Haziness only visible on the horizon.

Seeing:Atmosphere stable with little interference.

In this open cluster the stars are well detached and they are not separated from each other.There are however bright and faint stars mixed together in this cluster.The central stars in this cluster grows brighter compared to the stars in the far outskirts of this cluster.

It measures 11.2'* 3.7'.

Challenge Rating:Moderately Easy.

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