(IAAC) Obj: M13 - Inst: Vixen 9x63 binoculars

Observation Poster: Stéphane Meloche <stephanemeloche@videotron.ca>
Observer: Stéphane Meloche
Your skills: Intermediate (some years)
Date/time of observation: 2005/07/03 5h09 UT
Location of site: Coaticook (Qc), Canada (Lat , Elev )
Site classification: Rural
Sky darkness: 5,2 <Limiting magnitude>
Seeing:  <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: Vixen 9x63 binoculars
Object(s): M13
Category: Globular cluster.
Class: V
Constellation: Her
Data: mag 5.7  size 16.6
Position: RA 16:41.7  DEC 36:28
In Hercules, at ~ 2½° S of êta Her. This great globular cluster is located almost at the zenith at the time of this observation. The sight is amazing! The core of M13 is very bright, although it is not stellar in appearance, and visible with direct vision. By using the averted vision, the size of the object really does not increase, like it occurs sometimes with other globular clusters of lower brightness.
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