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Type: supernova remnant
Mag: B=?, V=?
NGC 6979 is a part of the Veil Nebula. WH's position for it is not particularly good, and points to a relatively faint piece of the supernova remnant. However, 7-8 arcmin to the southwest is a brighter piece that he could well have seen. I've taken this as NGC 6979.
See NGC 6960 for more on the Veil.
Synonyms: H II-206
Discovered in 1784 by William Herschel with an 18.7-inch f/13 speculum telescope. He called it "F, S, crookedly extended, r."
Dreyer notes "Birr Castle, three times not found, once extremely faint nebulosity seen. Bigourdan, stellar, neb?"
Bailey, examining a Bruce plate (Harvard Annals, Vol 72, No 2), describes it as "probably a faint extension of the Great Cygnus nebula." A further notes reads: "NGC 6960, NGC 6979, NGC 6992 and NGC 6995 are parts of the Great Cygnus Nebula."
(Sulentic and Tifft 1973) notes that this is a diffuse nebula.
Harrington, P. (1990) An observer's guide to diffuse nebulae – II. Sky&Telescope, July, 97.
The Messier objects
The Bennett objects
The Caldwell list
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