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Deep Sky Observer's Companion – the online database

 

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Cl VDBH 166 (12,697 of 18,816)

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Cl Hogg 18

Cl VDBH 166, C 1447-520, Cl Hogg 18, COCD 359

RA: 14h 50m 42s
Dec: −52° 16′ 0″

Con: Lupus
Ch: MSA:969, U2:431, SA:25

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

(reference key)

Type: open cluster, 32p

Mag: B=8.52, V=8

Size: 5′
PA: ?

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Published comments

Hogg, A. R. (1961)

Hogg, A. R. (1961) "A Southern Galactic Cluster", April 1961, Observatory, Volume 81, No. 921, p 69-71.

[cluster photo]

"Photographs taken with the Mt Stromlo 74-inch reflector show what appears to be a hitherto unrepoted galactic cluster situated near a=14h 47.2m, d = -52° 03' (1950) where tehre is a concentration of stars in a region 10' x 6' around HD 130534. Star counts on a blue plate [reporduced with the article] to an estimated magntiude of 17.5 show 112 stars in this region. The mean count for the four immediately adjoining regions of equal area is 60 stars ... which clearly indicates a concentration in the region . . . It seems likely that at least 14 out of the total 35 measured stars are cluster members."

Hogg gives the apparent diameter as 8'.

V values range from 8.84 to 15.6; B-V ranges -0.30 to +1.05

Hogg, A. R. (1965)

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

A small elongated group of brighter stars.

Contemporary observations

Auke Slotegraaf

1997-10-02

U 431:

6-inch f/8.6 Newtonian: 1997-10-02, Franschoek Pass viewing site. Obvious haze and thin clouds, sky fairly bright around horizon. "An obscure cluster, one bright member (9.5m) with 8 fainter stars surrounding and extending off to the east. See the diagram from the STScI."

Magda Streicher

2003 January 27

16-inch f/10 SCT (127x)

Digte klein groepering wat moontlik verder kan uitbrei na die ooste, om dit 'n baie langwerpige E/W te laat vertoon. Goed uitstaande en dig teen 'n yl sterveld. Die middle van Hogg 18 word aangdui met 'n 8.7Magnitude wit ster. Heel besonders. Die suide word afgerond met 'n uitstaande wit 7.7 Magnitude ster.

Skiff (e-mail 2002 December 26) similarly gives a center star of HD 130534, with a (2000.0) position of 14h50m41s DEC: -52°15.9. This is essentially the same position as what Brent's catalog gives.

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