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(IAAC) Obj: NGC 186, NGC 193, NGC 203, NGC 204 - 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: 12/22/06  02:30 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 186, NGC 193, NGC 203, NGC 204
Category: External galaxy.
Class: 
Constellation: Psc
Data: mag   size 
Position: RA :  DEC :
Description:
NGC186; Mag 13.4, Size 1.0' X 1.0', RA 00:38.5, DEC +03:10
A very faint circular nebulous patch of uniform appearance.  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.  NGC193 is located ~15' to the NE..

NGC193; Mag 12.2, Size 1.0' X 1.0', RA 00:39, DEC +03:20
A uniform round halo which gradually brightens to a bright diffuse core.
A faint, 14th magnitude, field star lies just off the SW edge.  A 10th
magnitude star is 3' SE and 3' to the SE of this star is located NGC204.
NGC193 was visible with direct vision at 77x and, owing to high surface
brightness, bore magnification well and was best seen at 257x.

NGC204; Mag 12.9, Size 0.5' X 0.5', RA 00:39.5, DEC +03:18
A uniform round halo which shows slight, gradual, diffuse brightening
toward the core.  The galaxy is located 6' SE of NGC193.  NGC204 was 
visible with averted vision at 128x and was best seen at 193x.

NGC203; Mag ~13.5 Size 0.5' X 0.5', RA 00:39.5, DEC +03:26.5
A very faint uniform nebulous patch of nearly circular shape.  It shows
no detectable brightening toward the core.  NGC193 is located 8' to the
SW..  NGC202, plotted just to the N., could not be seen.  NGC203 was
repeatedly visible with averted vision at 128x but began to fade into the
background with any increase in magnification.



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