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NGC 6837 (15,919 of 18,816)

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NGC 6837

NGC 6837, C 1951+115, VIII 18, h 2055, GC 4519

RA: 19h 53m 30s
Dec: +11° 41′ 0″

Con: Aquila
Ch: MSA:1243, U2:207, SA:16

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

(reference key)

Type: open cluster, 41p

Mag: B=?, V=12

Size: 3′
PA: ?

History and Accurate Positions for the NGC/IC Objects (Corwin 2004)

NGC 6837 is a cluster of about 15-20 stars 12th magnitude and fainter, only six by three arcmin in size, centered about 3 arcmin west of WH's nominal position (19 50 57, +11 34.7; B1950.0). The position in the GC and NGC comes from JH whose notes read, "Viewed. In place by working list? It is a coarse straggling part of the Milky Way." He puts plus/minus signs on both RA and NPD. It's clear that he should have used his father's position, but I suspect he thought he was. I also suspect that he did not really see the cluster that his father did as his description is not the one he uses for small clusters elsewhere in his observations.

WH himself is not much more informative: "A small forming cluster of stars." He used the word "forming" literally as he interpreted the cluster as a young object just settling into clusterhood. The only real clue we have now is "small" and that fits the object pretty well.

The NGC position actually lands in a region void of brighter stars. It's no wonder that RNGC lists it as non-existent.

Historical observations

William Herschel (c.1784)

Synonyms: H VIII-018

Discovered in 1784 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "a small forming cluster of stars [see his description of NGC 6834]."

Published comments

Sulentic & Tifft (1973)

The RNGC (Sulentic and Tifft 1973) notes that this is a nonexistent object. Their coded description reads NO CL DC.

Contemporary observations

Magda Streicher

2010 June 12

Location: Polokwane

16-inch f/10 SCT (127x 290x)

Vaguely saw a hazy patch that reminds me of the clusters in the constellation Mensa. With real high power just a few pin pricks could be seen.

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