NGC/IC Project Restoration Effort
(This is a very very beta version)
NGC4521
Basic Information
Location and Magnitude
Right Ascension: 12:32:47.6
Declination: +63:56:22
Constellation: DRA
Visual Magnitude: 12.2
Historic Information
Discoverer: Herschel W.
Year of discovery: 1790
Discovery aperture: 18.7
Observational
Summary description: pB, S, pmE, pgbM, * 10 p 12s
Sub-type: S0-a
Corwin's Notes
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NGC 4521 is probably = NGC 4512 (which see).
Steve's Notes
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NGC 4521
24" (5/30/16): at 225x; moderately bright and large, edge-on 4:1 NNW-SSE, 1.2'x0.3', sharply concentrated with a very small bright core. A mag 11 star is 2' NNW and a mag 15.2 star is 1.4' SSE. Forms a pair with much fainter UGC 7700 4' SSW. Brightest in a group including NGC 4510 19' NNW and NGC 4545 27' SSE.
UGC 7700 (misidentified in all modern catalogues and most online sources as NGC 4512) appeared very faint, fairly small, 24" diameter (only the central region seen), very low even surface brightness.
17.5" (4/15/93): moderately bright and large, edge-on 4:1 NNW-SSE, very bright core, faint stellar nucleus, very thin tapering extensions. Located 2.0' SSE of a mag 10 star. A mag 15 star is just 30" E of the southern extension. NGC 4481 lies 20' WNW. UGC 7700 = (R)NGC 4512 located 4' SW was not seen.