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(IAAC) Obj: M 47 - Inst: Tal 200K Klevtzov-Cassegrain
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Observation Poster: M.M.H. Heijen <mm94@planet.nl>
Observer: M.M.H. Heijen
Your skills: Beginner (< one year)
Date/time of observation: 10-03-2002
Location of site: Landgraaf (Lat 50.55N, Elev 6.03E)
Site classification: Urban
Sky darkness: 4.5 <Limiting magnitude>
Seeing: 5 <10-1 Seeing Scale (1 best)>
Moon presence: None - moon not in sky
Instrument: Tal 200K Klevtzov-Cassegrain
Magnification: 62,5
Filter(s): None
Object(s): M 47
Category: Open cluster.
Class: I 2 m
Constellation: Puppis
Data: mag 5,8 to 11 size 25' x 30 '
Position: RA 07:36 DEC -14:30
Description:
M 47 is an open cluster Trumpel Type I 2 M, It's visual magnitude
is 4.4. It is a very easy object to find. Normally under clear dark
skies it is visible with the naked eye. In my 8 x 50 finderscope
it was even visible very low near the hazy horizon and bad
observing conditions. It is a bright object. The size is abouth
25' x 30'. It has an irregular shape. There is a "cross-like"
star formation in the lower half of the cluster. On the southern
tip of this "cross" there is a nice double star visible. There are
5 or 6 chains of stars visible. Some voids and empty lanes in
the cluster are visible. There is no distinctive central star.
The stars range from magnitude 5.6 to 11 in my scope.
There is no glow from unresolved stars.
For a drawing visit my website:
http://home.planet.nl/~heije257
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Optional related URLs: http://home.planet.nl/~heije257
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