(IAAC) Obj: Cr 21, putter cluster - Inst: Vixen 9x63 binoculars

anonymous at sedna.atmob.org anonymous at sedna.atmob.org
Fri Sep 29 17:24:46 EDT 2006


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

Observer: Stéphane Meloche
Your skills: Advanced (many years)
Date/time of observation: 2006/08/26 6h25 UT
Location of site: St-Joseph-de-Coleraine, Qc, Canada (Lat 45.96°, Elev )
Site classification: Exurban
Sky darkness: 5.8 <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): Cr 21, putter cluster
Category: Open cluster.
Class: 
Constellation: Tri
Data: mag 8.2  size 6.0'
Position: RA 01:50.1  DEC 27:15
Description:
In Triangulum, at ~ 2 ½ ° SW of Alpha Tri. Beautiful open cluster, compact in
appearance. It presents a very characteristic ovoid form. Except HD 1142, no
member of the cluster is visible individually with the binoculars. Note that the
position provided by maps shift the object ~ 10 ' in the north of the real
position.  This mapping error for this object is known for some time and present
in many atlases. 
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