(IAAC) Obj: NGC 4660 - Inst: 17" f/15 classical Cassegrain equatorial mount

Observer: Dave Mitsky
Your skills: Advanced (many years)
Date/time of observation: 2000/6/21 02:54 UT
Location of site: ASH Naylor Observatory, Lewisberry, PA, USA (Lat 40.15 d N, 76.9 d W, Elev 190 meters)
Site classification: Exurban
Sky darkness: ~5.0 <Limiting magnitude>
Seeing: 6 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 17" f/15 classical Cassegrain equatorial mount
Magnification: 118, 144, 162, and 259x
Filter(s): none
Object(s): NGC 4660
Category: External galaxy.
Class: E:
Constellation: Virgo
Data: mag 11.2  size 2.4'x2.1'
Position: RA 12h:44.5m  DEC 11d:11'
NGC 4660 lies to the immediate south of M60 and to the southeast of
M90.  This Herschel 400 elliptical galaxy has a rather high surface
brightness (12.8) and was thus surprisingly bright through the eyepiece.
NGC 4660 was round, had a bright inner region and a fainter outer halo,
and formed a triangle with two faint field stars that are located to
the south and northeast.
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