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NGC 6596 (15,073 of 18,816)

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NGC 6596

NGC 6596, C 1814-166, COCD 437, VIII 55, h 2003, GC 4396

RA: 18h 17m 30s
Dec: −16° 39′ 0″

Con: Sagittarius
Ch: MSA:1368, U2:294, SA:15

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

(reference key)

Type: open cluster, 22mn

Mag: B=?, V=?

Size: 10′
PA: ?

Historical observations

William Herschel (c.1784)

Synonyms: H VIII-055

Discovered in 1786 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "a coarsely scattered cluster of large stars."

Published comments

Sulentic & Tifft (1973)

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

Contemporary observations

Auke Slotegraaf

1995 May 30

1995-05-30: 11x80.Technopark. 23:00 SAST. Hazy sky. A large hazy milky way patch. Borders are very unclear.

1997 April 21

1997 April 21. Jonkershoek. 11x80 tripod-mounted. No moon. Very difficult. Chart shows small cluster, I see a much larger patch.

1997 July 07

1997 July 7, Monday, 21:00 - 24:00 Jonkershoek. 11x80's tripod-mounted. Very rich field, coarse grouping of many small stars, all of which are imagined. Shows as a round, mottled glow. Same size as M18.

1998 July 31

Location: Jonkershoek Nature Reserve, Assegaaibosch Station

Date: 1998 July 31 / August 01, 01:00-02:40 SAST

11x80 tripod-mounted binoculars (9.5 mag stars at times not easy)

Sky conditions: Mediocre (transp. low, seeing average, dew) The skies are showing the effects of the combination of pollution (mainly from a nearby wood-processing plant) and a stable inversion layer, turning daytime skies grey-blue, and night skies ashen.

Between the Swan and M24 I picked up this wee one with not much certainty, only vaguely noticed as a hazy patch.

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