(IAAC) Obj: NGC 1931 - Inst: 8" f/6 Dobsonian

Observer: Michael Geldorp
Your skills: Intermediate (some years)
Date/time of observation: 2/2/2000 21.20 UT
Location of site: Alphen ad Rijn, Netherlands (Lat 52*N, Elev )
Site classification: Suburban
Sky darkness: 4.5 <Limiting magnitude>
Seeing: II <I-V Seeing Scale (I best)>
Moon presence: None - moon not in sky
Instrument: 8"  f/6 Dobsonian
Magnification: 49X, 98X, 203X, 244X
Object(s): NGC 1931
Category: Open cluster.
Constellation: Aur
Data: mag 11.3  size 4'.0
Position: RA 05:31  DEC +34:15
A fuzzy star at 49X, this object is seen as a fuzzy ball of very faint stars
with a nebulous glow around it. I was expecting an open cluster and noted the
nebulous appearance. Only later did I find out that this cluster is enveloped
in a nebula confirming my observation.
Very difficult to see at 98X, slightly better at 203X. Very compact group
of stars.
There is a sketch on this object on my homepage: URL mentioned below.
Optional related URLs: http://home.wxs.nl/~geldo006/home.html
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