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(IAAC) Obj: NGC 4540 - Inst: 10.1" f/4.5 Newtonian reflector



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Observation Poster: Brent Reary <gmbreary@rollanet.org>

Observer: Brent Reary
Your skills: Intermediate (some years)
Date/time of observation: 05/27/05  04:15 UT
Location of site: Rolla, MO  USA (Lat 37 57'N, Elev )
Site classification: Rural
Sky darkness: 6.5 <Limiting magnitude>
Seeing: 7 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 10.1" f/4.5 Newtonian reflector
Magnification: 77x, 128x, 257x
Filter(s): None
Object(s): NGC 4540
Category: External galaxy.
Class: 
Constellation: Com
Data: mag 11.7  size 2.0' X 1.5'
Position: RA 12:35  DEC +15:33
Description:
A round, to slightly oval halo which, during moments of steady seeing
appears slightly mottled.  It gradually brightens to a fairly bright,
nearly stellar core.  Visible with direct vision at 77x, it bore
magnification well and was best seen at 128x-257x.  The faint stellar
galaxy IC3528, located just off the NE edge, could not be seen.

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