(IAAC) Obj: M 53 - Inst: 120 mm KONUS refractor, f/8.33, eq. mount

Observation Poster: Natko Bajic <natkobajic@yahoo.com>
Observer: Natko Bajic
Your skills: Intermediate (some years)
Date/time of observation: May, 12th, 2001.
Location of site: Vinisce, near Split, Croatia (Lat 43.5, Elev )
Site classification: Rural
Sky darkness: 6.0 <Limiting magnitude>
Seeing:  <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 120 mm KONUS refractor, f/8.33, eq. mount
Magnification: 40x, 100x
Filter(s): None
Object(s): M 53
Category: Globular cluster.
Constellation: Com
Data: mag 7.6  size 12.6'
Position: RA 16:23.6  DEC -26:32
Dense and relatively bright globular cluster. At 40x I couldn't see
any details, 100x begins to reveal grainy texture even with direct
vision. Averted vision showed me five individual stars in the northern
part of the cluster after certain time. Cluster seemed round with
central brightening toward its small core. Field of view is not rich,
but west of the cluster there are two brighter stars. Sketch is
available at the mentioned URL.
Optional related URLs: http://www.geocities.com/natkobajic
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