(IAAC) Obj: M41 - Inst: Vixen 9x63 binoculars

anonymous at sedna.atmob.org anonymous at sedna.atmob.org
Sat Mar 5 22:03:31 EST 2005


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

Observer: Stéphane Meloche
Your skills: Intermediate (some years)
Date/time of observation: 2005/02/06 02h25 UT
Location of site: St-Joseph-de-Coleraine (Qc) Canada (Lat , Elev )
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
Object(s): M41
Category: Open cluster.
Constellation: CMa
Data: mag 4.5  size 38'
Position: RA 06:46  DEC -20:45
At 4° S of Sirius. This cluster is of triangular aspect, pointing in the north. I notice the upper part of the triangle stretches to form a small star arc which curves in western direction. As many open clusters, M41 is revealed like a fuzzy spot with several individual brilliant stars observed in foreground. I observe 20 individual stars inside M41: 3 brilliant in the center, 6 others of average brightness, laid out in crown around the 3 preceding ones, and 10 disseminated randomly. In the center of M41, I observe a double star made up of of stars with the same brightness.
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