(IAAC) Obj: M4 - Inst: Vixen 9x63 binoculars

[anonymous at s15272250.onlinehome-server.com]

----

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

Observer: Stéphane Meloche
Your skills: Advanced (many years)
Date/time of observation: 2008-07-05 2h58 UT
Location of site: St-Joseph-de-Coleraine (Lat 45,97°, Elev 380 m)
Site classification: Exurban
Sky darkness: 5.6 <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): M4
Category: Globular cluster.
Class: IX
Constellation: Sco
Data: mag 5.8  size 26.3
Position: RA 16:23.6  DEC -26:32
Description:
In Scorpius, at 1¼ ° W of Antares (Alpha Sco). My last observation on this
subject dates back to May 20, 2001. Always a pleasure to watch, showing M4
with impressive size with my 9x63. After all, this is the largest globular
cluster of the Messier catalog. Also, the low degree of concentration is
obvious. Some moments, I observe a vertical alignment of stars unresolved within
the object. Unlike other globular clusters such as M92, M4 limits are difficult
to identify and averted vision increases, significantly, the extent of the
object. This same technique reveals occasionally a heart stellar appearance,
which is weird for this peculiar object.
--
** This observing log was submitted via the IAAC Web form:
  www.visualdeepsky.org/enter-log.html