NGC/IC Project Restoration Effort
(This is a very very beta version)
NGC4639
Basic Information
Location and Magnitude
Right Ascension: 12:42:52.3
Declination: +13:15:26
Constellation: VIR
Visual Magnitude: 11.5
Historic Information
Discoverer: Herschel W.
Year of discovery: 1784
Discovery aperture: 18.7
Observational
Summary description: pB, S, E, r, * 12 sf 1'
Sub-type: SBbc
Steve's Notes
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NGC 4639
17.5" (4/13/02): moderately bright and large, elongated 3:2 NW-SE, 1.5'x1.0', broad concentration to a larger, brighter core. The core increases sharply to a small bright nucleus. A mag 12.5 star is close following just 1.0' from center.
17.5" (4/21/90): moderately bright, fairly small, elongated 3:2 NW-SE, 1.6'x1.0', faint stellar nucleus. A mag 12 star is just off the SE side 1.0' from the center. NGC 4654 lies 17' SE and NGC 4659 is 28' NE.