NGC/IC Project Restoration Effort
(This is a very very beta version)
NGC3763
Basic Information
Location and Magnitude
Right Ascension: 11:36:30.2
Declination: -9:50:50
Constellation: CRT
Visual Magnitude: 11.8
Historic Information
Discoverer: Common
Year of discovery: 1880
Discovery aperture: 36.0
Observational
Summary description: F, dif, sp 7 st
Sub-type: SBc
Corwin's Notes
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NGC 3763 = IC 714. For once, the Leander McCormick observation, this one a
micrometric one by Francis Leavenworth, referred to an unmistakeable star, is
correct (though perhaps with a 10-arcsec declination error). Even A. A.
Common's position is fairly close, only 12 seconds of time and one arcminute
off.
So Dreyer must have been feeling cautious when he did not mention that the two
entries might refer to the same object -- or perhaps he just missed them.
Leavenworth does list his comparison star as "Wash. Cat. 4946" -- it is theta
Crateris with a V magnitude of 4.7 -- so it would not be instantly
recognizeable to someone reading through the list of Leander McCormick
observations. Also, Common has an odd note about it (at least I suppose his
note refers to the star.) His full description reads "F, diffused, sp 7
stars." The galaxy is indeed "sp", but what does "7 stars" mean? I don't see
any other galaxy in the area that has seven obvious stars to the northeast, so
given that Common's position is not all that bad, I'll leave this particular
mystery to someone else to solve. Perhaps an eyepiece view with the same
power and field as Common used on his 36-inch would be more revealing than the
DSS.
Steve's Notes
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NGC 3763
17.5" (5/2/92): faint, fairly small, slightly elongated, almost even surface brightness. Overpowered by Theta Crateris (V = 4.7) just 3.7' NE.