(IAAC) Obj: NGC 6356 - Inst: Vixen 9x63 binoculars

anonymous at sedna.atmob.org anonymous at sedna.atmob.org
Mon Jul 24 23:39:00 EDT 2006


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Observation Poster: Stéphane Meloche <stephanemeloche at videotron.ca>

Observer: Stéphane Meloche
Your skills: Intermediate (some years)
Date/time of observation: 2006/07/20 4h09 UT
Location of site: Ste-Catherine-de-Hatley, Québec, Canada (Lat 45.4542°, Elev 316 m)
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
Magnification: 
Filter(s): 
Object(s): NGC 6356
Category: Globular cluster.
Class: II
Constellation: Oph
Data: mag 8.4  size 3.5'
Position: RA 17:23.6  DEC -17:49
Description:
In Ophiuchus, at ~ 1¼° of M9. This object is observed very easily at 
binoculars. It seems compact. Oddly, the halo surrounding it is wider than 
other globular clusters in Ophiuchus and of comparable size. The wide halo 
gives the impression of globular having a weak concentration, which is not the 
case. NGC 6356 presents a stellar core 40% of the time. M9 in the same FOV.
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