NGC/IC Project Restoration Effort
(This is a very very beta version)
NGC6774
Basic Information
Location and Magnitude
Right Ascension: 19:16:18.0
Declination: -16:19:30
Constellation: SGR
Visual Magnitude:
Historic Information
Discoverer: Herschel J.
Year of discovery: 1828
Discovery aperture: 18.3
Observational
Summary description: Cl, vL, lC
Sub-type: III2m
Corwin's Notes
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NGC 6774. Earlier, I wrote, "[This] is a large cluster, over 20 arcmin across
with perhaps 75 to 100 stars as possible members." JH has it as much larger:
"Fills 2 or 3 fields", and calls it "A fine, L, loosely scattered cl of large
with some small stars" in one sweep and "A very large straggling space full of
stars 8, 9, and 10 m" in a second. I also said, "His position [from one sweep
only] is close northeast of SAO 162395, the brightest star in (or superposed
on) the cluster, but the center on the POSS1 prints is six arcminutes
west-northwest."
Looking at a 1 degree DSS field, I see that -- if JH's diameter estimate is
right -- his object nearly fills it, easily covering 52' x 34'. But that
includes many outlying stars that may well simply be field stars. I'm going
to stick with my original guess of a smaller, but still quite large, cluster
of pretty bright stars with diameters of 24 by 22 arcminutes. Again, I note
that the center is about half a minute of time west of JH's center, so my
"cluster" may not represent what he saw very well.
Steve's Notes
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NGC 6774
13.1" (8/5/83): large, scattered field of 50 stars mag 11 and fainter in a 20' diameter although no real borders. Does not contain any rich spots. Possibly not a true open cluster.