NGC/IC Project Restoration Effort
(This is a very very beta version)
NGC3489
Basic Information
Location and Magnitude
Right Ascension: 11:0:18.4
Declination: +13:54:3
Constellation: LEO
Visual Magnitude: 10.3
Historic Information
Discoverer: Herschel W.
Year of discovery: 1784
Discovery aperture: 18.7
Observational
Summary description: vB, pL, lE 80° ±, smbMN
Sub-type: SB0-a
Corwin's Notes
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NGC 3489. See NGC 3498.
Steve's Notes
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NGC 3489
18" (5/14/07): very bright, large, elongated 2:1 WSW-ENE, 2.5'x1.25'. Sharply concentrated with a round, intense core (relatively small) highlighted by a very bright quasi-stellar nucleus. A mag 12.5 star lies 1.5' WSW of center, just outside the halo. Member of the Leo Group = M96 Group.
17.5" (4/1/95): very bright, moderately large, elongated 5:3 WSW-ENE, 2.5'x1.5'. Unusually bright, round core dominates view with an almost stellar nucleus with direct vision. The halo nearly reaches to a mag 13 star 1.5' SW of center.
8" (12/6/80): fairly bright, bright core.