NGC/IC Project Restoration Effort
(This is a very very beta version)
NGC6191
Basic Information
Location and Magnitude
Right Ascension: 16:31:40.7
Declination: +59:37:36
Constellation: DRA
Visual Magnitude: 12.7
Historic Information
Discoverer: Swift L.
Year of discovery: 1886
Discovery aperture: 16.0
Observational
Summary description: pF, pL, E, 2 st p
Sub-type: SBc
Corwin's Notes
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NGC 6191 is not at its nominal place. There are several other bright galaxies
in the area, however, that Swift might have picked up. Possibilities include
NGC 6187, N6189, or N6190. N6187 has the two stars preceding that Swift noted
in his description, but it is the faintest and smallest galaxy of the
candidates. In addition, it has a bright star (SAO 29975) 3.5 arcmin north
that Swift surely would have noted.
N6189 fits Swift's description best -- though the two stars are following
rather than preceding as Swift notes them -- but is 50 arcmin north of his
position. N6190 is 20 arcmin south, and forms a rather large equilateral
triangle with two stars west and northwest.
Another possibility is UGC 10271. That is 20 min 30 sec preceding Swift's
position, matches his declination and description, and has the two stars
preceding. If that is the galaxy Swift saw, he clearly made a transcription
error in his RA.
Finally, Swift found two other galaxies the same night, 6 July 1886: NGC 6127
and NGC 6136. His positions for both of those are good, so there is no hint
of a systematic offset for the night.
All in all, several candidates, but no clear winner.
Steve's Notes
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NGC 6191
See observing notes for NGC 6189. Identification uncertain.