NGC/IC Project Restoration Effort

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NGC4638

Basic Information

Location and Magnitude

Right Ascension: 12:42:47.3
Declination: +11:26:33
Constellation: VIR
Visual Magnitude: 11.2

Historic Information

Discoverer: Herschel W.
Year of discovery: 1784
Discovery aperture: 18.7

Observational

Summary description: F, R, gbM
Sub-type: E-S0

Corwin's Notes

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NGC 4638 is probably also NGC 4667, which see.  Also see NGC 4637.

Steve's Notes

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NGC 4638

24" (5/25/14): very bright, moderately large, elongated 2:1 NW-SE, 1.2'x0.6', sharply concentrated with a very bright, very elongated core (bar or edge-on S0?) and a much fainter oval halo.  NGC 4637, an extremely faint companion, is 1.6' E of center.

17.5" (4/25/87): moderately bright, very elongated 5:2 WNW-ESE, fairly small, bright core, substellar nucleus.  Located between M59 and M60.

13.1" (5/14/83): fairly bright, small, bright core, elongated.