(IAAC) Obj: NGC 4147 - Inst: 120mm f/8.3 refractor

[anonymous at sedna.atmob.org]

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Observation Poster: Diego González <digonzalz at hotmail.com>

Observer: Diego González
Your skills: Intermediate (some years)
Date/time of observation: 15/04/2004 21:24 UT
Location of site: Asturias, Spain (Lat 43º 12'N, Elev 300m)
Site classification: Rural
Sky darkness: 5.8 <Limiting magnitude>
Seeing: 6 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 120mm f/8.3 refractor
Magnification: 31x, 50x, 80x, 100x, 167x
Filter(s): 
Object(s): NGC 4147
Category: Globular cluster.
Class: 
Constellation: Com
Data: mag 10.4  size 4.7'
Position: RA 12:10  DEC +18:33
Description:
I found this globular 2.5º West of 11 Comae Berenices; it's easily seen at all
magnifications, near a reddish 8th magnitude star. Best view using 80x: the 
globular is well defined and has a round appearance. In the same field I can 
see a line of stars (8-11 magn) going from the red star to the cluster.

Using 167x the view is slightly better, but no resolution can be seen. 

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