NGC/IC Project Restoration Effort
(This is a very very beta version)
NGC4689
Basic Information
Location and Magnitude
Right Ascension: 12:47:45.7
Declination: +13:45:44
Constellation: COM
Visual Magnitude: 11.0
Historic Information
Discoverer: Herschel W.
Year of discovery: 1784
Discovery aperture: 18.7
Observational
Summary description: pB, vL, E, vglbM, r
Sub-type: Sbc
Corwin's Notes
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NGC 4689. See NGC 4752.
Steve's Notes
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NGC 4689
17.5" (5/14/94): fairly bright, fairly large, elongated 3:2 WNW-ENE, 3'x2', large diffuse halo, weak concentration, ill-defined brighter core, possible mottling. A pair of mag 11.5/12 stars with separation 1.2' (parallel to the major axis) are located 3.5' N. At 280x, a 1.0' core is more prominent and the outer halo become becomes difficult to view. At low power, forms the northern vertex of a triangle with 28 Comae Berenices (V = 6.6) 14' SSE and mag 8.2 SAO 100258 14' SW.