(IAAC) Obj: NGC 4531 - Inst: 10.1" f/4.5 Newtonian reflector

anonymous at sedna.atmob.org anonymous at sedna.atmob.org
Sun Jun 10 19:22:59 EDT 2007


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

Observer: Brent Reary
Your skills: Intermediate (some years)
Date/time of observation: 6/5/07  03:35 UT
Location of site: Rolla, MO  USA (Lat 37 57'N, Elev )
Site classification: Rural
Sky darkness: 6.0 <Limiting magnitude>
Seeing: 5 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 10.1" f/4.5 Newtonian reflector
Magnification: 128x, 193x
Filter(s): None
Object(s): NGC 4531
Category: External galaxy.
Class: 
Constellation: Vir
Data: mag 11.4  size 2.0' X 1.0'
Position: RA 12:34  DEC 13:05
Description:
A faint uniform oval halo which is elongated nearly N-S.  It shows no
detectable brightening toward the core.  Steadily visible with averted
vision at 128x, it began to fade into the background with increased
magnification.

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