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(IAAC) Obj: NGC 4147 - Inst: 15 inch Obsession f4,5



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Observation Poster: Armin Hermann <burmeseinn@yahoo.com>
Observer: Armin Hermann
Your skills: Advanced (many years)
Date/time of observation: 16 Apr 04
Location of site: Sangkhlaburi, Thailand (Lat 15N, Elev 200m)
Site classification: Exurban
Sky darkness: ~5 <Limiting magnitude>
Seeing: 9+ <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 15 inch Obsession f4,5
Magnification: 131 and 342x
Filter(s): none
Object(s): NGC 4147
Category: Globular cluster.
Class: 
Constellation: Com
Data: mag 10,2v  size 4' 
Position: RA :  DEC :
Description:
At 131x this small cluster is fairly bright. It appears granular and with a 
bright core in a 3 wide halo. At 342x the edge of the globular resolves into a 
dozen stars while the center remains unresolved. The core is bright and very 
small (20). Two foreground stars of 13 and 14mag are attached to the N edge of 
NGC4147.
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