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(IAAC) Obj: M12 - Inst: TV-102 (102mm f/8.6 APO refractor)



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Observation Poster: Ron B[ee] <ronby@home.com>

Observer: Ron B[ee]
Your skills: Beginner (< one year)
Date/time of observation: 07/16/01
Location of site: 117h 9m W (Lat 32h 43m N, Elev 2000 ft)
Site classification: Exurban
Sky darkness: 5 <Limiting magnitude>
Seeing: 5 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: TV-102 (102mm f/8.6 APO refractor)
Magnification: 30x, 60x, 110x, 146x, 176x, 220x
Filter(s): none
Object(s): M12
Category: Globular cluster.
Class: 
Constellation: Oph
Data: mag 6.6  size 14'
Position: RA :  DEC :
Description:
At 30x, it doesn’t look round, more like a triangle.  4 stars form a square to
the right, 3 stars to the left.  At 60x, count 6 outer stars.  Best view at 
110x, 5 stars in the core, lots more with averted vision, core looked loose.  
146x same view as 110x.  176x same view and just fit FOV.  220x still fit FOV 
but now dimmer.  Partial resolution at 146x, 176x and 220x.

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