NGC/IC Project Restoration Effort

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NGC4764

 

Basic Information


Location and Magnitude


Right Ascension: 12:53:6.7
Declination: -9:15:27
Constellation: VIR
Visual Magnitude: 15.1

Historic Information


Discoverer: Tempel
Year of discovery: 1882
Discovery aperture: 11.0

Observational


Summary description: eF, eS, sf D neb II 559
Sub-type: E2

Corwin's Notes

===== NGC 4764. This is another of the nebulae found by Tempel that has no position given in his discovery paper in AN 2439. Either he or Dreyer concocted the NGC position from what information he did give. See NGC 4776 for the sorting out of this field for RC3 in the late 1980s.

Steve's Notes

===== NGC 4764 18" (6/17/06): extremely faint and small, round, 10"' diameter. Located 1.9' SSE of mag 9.5 HD 111960 that hampers the view and 3.4' SSE of the double system NGC 4759. Requires averted to view. 17.5" (4/13/96): HCG 62d appears extremely faint and small, round, requires averted but once located can hold at least 50% of time. Located 1.9' SSE of a mag 9 star. A mag 13.5 star lies 1.3' SW. Faintest of four in HCG 62. 17.5" (5/17/90): extremely faint and small, round, almost stellar, glimpsed for moments only. Located in a compact galaxy group 3.5' S of double system NGC 4759 and 2' S of mag 9.1 SAO 139019. A mag 14 star is 1.5' SW.