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(IAAC) Obj: NGC 5636, NGC 5638 - 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: 6/9/07  03:35 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 5636, NGC 5638
Category: External galaxy.
Class: 
Constellation: Vir
Data: mag   size 
Position: RA :  DEC :
Description:
NGC5638; Mag 11.2, Size 2.0' X 2.0', RA 14:29.5, DEC +03:14
A round halo which, during moments of steady seeing, appears to be slightly
mottled.  It brightens rather abruptly to a tiny, bright, stellar core.
Visible with direct vision at 77x, it bore magnification well and was best
seen at 257x.  NGC5636 lies ~2' N..  UGC9310, plotted 6' E., could not be
seen.

NGC5636; Mag 12.7, Size 1.5' X 1.0', RA 14:29.5, DEC +03:16
A faint uniform oval halo elongated NE-SW.  It shows no detectable brightening
toward the core.  Visible with averted vision at 128x, it was best seen at
193x and began to fade into the background at 257x.

These two galaxies are located just to the SE of a "kite" shaped asterism
of four 11th magnitude stars which span ~10'.
 
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