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Type: open cluster
Mag: B=11.04, V=10.93
Discovered by James Dunlop from Paramatta, New South Wales, and included as No. 201 in his catalogue of 1827. Using a 9-inch f/12 telescope, he described it as "A round well-defined small nebula, 20 arcsec diameter, bright at the centre." He observed it on three occasions.
Observed by Sir John Herschel at the Cape of Good Hope with an 18-inch f/13 speculum telescope. He recorded it as "bright; small; round; or slightly elongated; resolved into stars 14..16 mag; 50 arcsec." On a second occasion he described it as "bright; irregularly round; or slightly elongated; gradually brighter in the middle; 80 arcsec; resolvable."
Shapley and Lindsay ("A Catalogue of Clusters in the Large Magellanic Cloud", Irish Astronomical Journal, Vol. 6, 1963) give a diameter of 3.1' and remark "condensed elongated centre, outer resolved."
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 10.93. They classify it as an open cluster.
The RNGC (Sulentic and Tifft 1973) notes that this is a 11.0 mag open cluster in the LMC.
15cm - mod br cl res @ 80x. halo 1' diam, oval core elong in pa60. m13-13.5 *
at SE edge of halo. part res w/15 *s m14.5+. BS, 19Nov1993, LCO.
1997 April 29, 11x80 binoculars, Technopark, light and air pollution, 19:40. Careful search, not found.
Location: Pietersburg South 23o 53. East 29o 28.
Sky conditions: Clear.
Date: 4 Julie 1997.
Field of view: 52.7 arc minutes.
ASSA-DSO - Report J
Faint, irregular, medium size open cluster. Well resolved and gaseous. Stars group together to form an extension to the north. More or less 30 stars.
12-inch f/10 SCT (EP: 2-inch 32mm SW 95x 42' fov; 2-inch 14mm UW 218x 23' fov)
Stars are not easily visible, but with careful observations it is been partly resolved on the outskirts (218x). It appeared slightly nebulous. A few stars are grouped to the north of which two appear to be double. Slightly oblong in a west to east direction. (Mag 10.9; size 3.6'; brightest stars = 14.5)
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 looks like an unresolved haze which consists of 13th magnitude stars and that this cluster cluster is strongly concentrated towards each other.This open cluster is arranged in an west east direction and that the stars in this cluster are well detached.However most of the stars in this cluster are nearly as bright as each other.This open cluster measures 7.1'x 5.9'with P.A:West/East.
The Messier objects
The Bennett objects
The Caldwell list
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