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NGC 121 (262 of 18,816)


oc gc pln bn dn gx gxcl ast aka lost




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NGC 121

NGC 121, Cl Kron 2, Cl Lindsay 10, ESO 50-12, h 2325, GC 58

RA: 00h 26m 49s
Dec: −71° 32′ 10″

Con: Tucana
Ch: MSA:502, U2:440, SA:24


(reference key)

Type: globular cluster

Mag: B=11.2, V=11.24

Size: ?
PA: ?

Historical observations

John Herschel

John Herschel recorded it as "pretty bright; a little extended; very gradually brighter in the middle; 40 arcsec."

Published comments

Kron (1956)

Kron, G. E. (1956) Star Clusters in the Small Magellanic Cloud: I. Identification of 69 Clusters. PASP, Vol. 68. [1956PASP...68..125K]

Describes it as a red cluster, noting the absence of nebulosity and the absence of bright blue stars. He classifies it as a globular cluster.

Lindsay, E.M. (1956)

Lindsay, E. M. (1956) Clusters in the Small Magellanic Cloud. Irish Astronomical Journal, Vol. 4. [1956IrAJ....4...65L]

Classifies it as a globular cluster. He writes: "NGC 121 was of course accepted as globular after the discovery of cluster-type variables in it by Thackeray and Wesselink."

Van den Bergh & Hagen (1968)

Van den Bergh and Hagen ("UBV photometry of star clusters in the Magellanic Clouds", Astronomical Journal, Vol. 73, 1968) find that the integrated V magnitude through a 60'' diaphragm is 11.3. They note that it is an old cluster with a B-V = 1.9.

Sulentic & Tifft (1973)

The RNGC (Sulentic and Tifft 1973) notes that this is a 11.0 mag globular cluster in the SMC.

Modern observations

Brian Skiff

Tifft 1963: * WSW V=12.96/1.19.

Alvarado+ 1991 A&ASuppl 90,191: * WSW V=13.01/1.22.

15cm - mod br circ glow @ 140x, m12.5 * WSW side. halo reaches 2/3 distance to this *. core 1/3 total diam. strong broad concen, sl clumpy texture. BS, 8Nov1993, LCO.

Contemporary observations

Auke Slotegraaf

1994 December 04

1994-12-04, Die Boord, 6-inch f/8.6 Newtonian. A most unimpressive globular cluster, in the same field as NGC 104. At first difficult but later easily seen as an out of focus small star.

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