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NGC 6561
NGC 6561, COCD 433, VIII 54, h 1997, GC 4385
Type: star cluster
Mag: B=?, V=9
Size: 15′
PA: ?
Historical observations
William Herschel (c.1784)
Synonyms: H VIII-054
Discovered in 1786 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "a coarsely scattered cluster of considerably large stars. The place is that of a small triangle."
Published comments
Sulentic & Tifft (1973)
The RNGC (Sulentic and Tifft 1973) notes that this is a nonexistent object. Their coded description reads NOCL S.
Modern observations
Steve Coe
Steve Coe, observing with a 13" f/5.6, notes: "Bright, large, scattered group of 26 stars, including a small asterism of 4 stars at 100X. The four star asterism is marked on Uranometria chart 339."
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Favourite lists
Lacaille's catalogue
The Messier objects
Dunlop's catalogue
The Bennett objects
The Caldwell list
Named DSOs
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