(IAAC) Obj: Comparison of M22 and M55 - Inst: 10x50 binoculars

Observer: Erhan Ozturk
Your skills: Beginner (< one year)
Date/time of observation: 9th June 1999 20:30-20:45(UT)
Location of site: Ankara/Turkey (Lat 40N, Elev 1000m)
Site classification: Suburban
Sky darkness: 3.5 <Limiting magnitude>
Seeing: 3 <10-1 Seeing Scale (1 best)>
Moon presence: Minor - crescent or far from object
Instrument: 10x50 binoculars
Magnification: 10x
Filter(s): None
Object(s): Comparison of M22 and M55
Category: Globular cluster.
Constellation: Sgr
Data: mag   size 
Position: RA :  DEC :
M22 is a little larger than M55 but still M55 can easily be seen as disk. 
Looking both of them shows the meaning of surface brightness. M22 has much 
surface brightness than M55
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