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(IAAC) Obj: NGC 2158 - Inst: 15 inch Obsession f4,5

To: Internet Amateur Astronomers Catalog <netastrocatalog@visualdeepsky.org>
Subject: (IAAC) Obj: NGC 2158 - Inst: 15 inch Obsession f4,5
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Date: Tue, 30 Dec 2003 10:37:31 -0500 (EST)
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Observation Poster: Armin Hermann <burmeseinn@yahoo.com>

Observer: Armin Hermann
Your skills: Advanced (many years)
Date/time of observation: 17 Dec 2003
Location of site: Sangkhlaburi, Thailand (Lat 15°, Elev 200m)
Site classification: Exurban
Sky darkness: 5,8 <Limiting magnitude>
Seeing: 7 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 15 inch Obsession f4,5
Magnification: 78x to 342x
Filter(s): none
Object(s): NGC 2158
Category: Open cluster.
Class: 
Constellation: Gem
Data: mag 8,6  size 5'
Position: RA :  DEC :
Description:
Few stars show up at 78x. At 342x I could resolve about 18+ of the 150 members 
of the very compact cluster. All stars are of almost similar brightness with no 
bright stars. Background still milky from unresolved stars.
Brightest stars of the cluster are ~15mag.
--
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