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(IAAC) Obj: NGC 6642 - 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: 03 Oct 2004
Location of site: Sangkhlaburi, Thailand (Lat 15°N, Elev 200m)
Site classification: Exurban
Sky darkness: ~5 <Limiting magnitude>
Seeing: 7-8 <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 6642
Category: Globular cluster.
Class: 
Constellation: Sgr
Data: mag 9,4magv  size 4,5'
Position: RA :  DEC :
Description:
Located just 1,1° WNW of the phantastic M22. 131x shows a tiny granular looking 
cluster that features a small bright core. Single stars located along the edge 
of 6642 are resolved at 342x. The bright core does not show any single stars. 
The overall diameter is approx. 3’.

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