NGC/IC Project Restoration Effort

(This is a very very beta version)

NGC3640

Basic Information

Location and Magnitude

Right Ascension: 11:21:6.7
Declination: +3:14:5
Constellation: LEO
Visual Magnitude: 10.4

Historic Information

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

Observational

Summary description: B, pL, R, psbM
Sub-type: E3

Steve's Notes

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NGC 3640

17.5" (2/8/91): bright, moderately large, small very bright core, oval halo 3:2 E-W, 15" substellar mottled nucleus.  A mag 14 star is 2.3' N.  Brightest in a group and forms a close pair with NGC 3641 2.5' SSE.

8" (4/24/82): bright, moderately large, bright core, slightly elongated.