(IAAC) Obj: NGC 5631 - Inst: 10.1" f/4.5 Newtonian reflector

**anonymous@sedna.atmob.org**

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

Observer: Brent Reary
Your skills: Intermediate (some years)
Date/time of observation: 7/14/07  04:45 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, 193x, 257x
Filter(s): None
Object(s): NGC 5631
Category: External galaxy.
Class: 
Constellation: UMa
Data: mag 11.5  size 1.0' X 1.0'
Position: RA 14:26.5  DEC +56:35
Description:
A round halo which, during moments of steady seeing, appears to be of
slightly uneven brightness at magnifications of 128x and higher.
Interestingly, the Digital Sky Survey image shows the halo to be quite
smooth.  It brightens abruptly to a bright, stellar core.  Visible with
direct vision at 77x, it was best seen at 193x-257x.  The galaxy forms
a wide (~25') equilateral triangle with a pair of 9th magnitude field
stars to the N..

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