NGC/IC Project Restoration Effort

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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

===== 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

===== 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.