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RA: 14h 48m 54s
Dec: −54° 30′ 0″
Ch: MSA:969, U2:431, SA:25
Ref: SIMBAD, Collinder (1931), DAML02, Archinal&Hynes (2003)
Type: open cluster, 22m
Mag: B=?, V=8.8
James Dunlop discovered this object from Paramatta, New South Wales, and included it as No. 206 in his catalogue of 1827. Using a 9-inch f/12 telescope, he described it as "a group of 8 or 10 pretty bright small stars, in the form of a letter Y, about 5' long, parallel to the equator, with small stars in it resembling faint nebula."
Observed by Sir John Herschel at the Cape of Good Hope with an 18-inch f/13 speculum telescope. He recorded it as "cluster VII class; p rich, loose, irregular figure, 8', stars 19 and 11th mag."
"Cat. of Open Cl. south of -45° Decl.", Mem. 17 Mnt Stromlo Obs.
Trumpler (Lick Obs Bul, Vol 14, No. 420) gives the diameter as 8' and the class as 2 2 p.
The RNGC (Sulentic and Tifft 1973) notes that this is a 9.0 mag open cluster.
1997 April 14, 02:00 - 04:00 Jonkershoek. 11x80's tripod-mounted. Irregularly round mottled patch, flanked by two 9th mag stars.
1998-04-24/25, 11x80 tripod-mounted binoculars, Die Boord. Seeing average, transparency below average, dew. "Moderately easy as a L, pF, iR patch, well mottled, flanked by two 9th mag stars. A number of stars in twos in the field."
16-inch f/10 SCT (127x, 290x, 463x)
This cluster appears much the same as NGC 5593 with the excepetion of a more round figure more or less 8' by 10' in size with the N-S part slightly longer. The cluster is very loose in formation.
The Messier objects
The Bennett objects
The Caldwell list
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