(IAAC) Obj: NGC 188 - Inst: reflector 203 mm, f/6, dobsonian

anonymous at s15272250.onlinehome-server.com anonymous at s15272250.onlinehome-server.com
Wed May 27 01:28:15 EDT 2009


Observation Poster: Alexandru Burda <alexandru.burda at gmail.com>

Observer: Alexandru Burda
Your skills: Intermediate (some years)
Date/time of observation: 23.05.2009 20:00 UT
Location of site: Bucarest, Romania (Lat 44,5 N, Elev 80 m)
Site classification: Urban
Sky darkness: 4 <Limiting magnitude>
Seeing: III <I-V Seeing Scale (I best)>
Moon presence: None - moon not in sky
Instrument: reflector 203 mm, f/6, dobsonian
Magnification: 48x, 120x
Filter(s): none
Object(s): NGC 188
Category: Open cluster.
Class: Medium richness
Constellation: Cep
Data: mag 8.1  size 14 arc min.
Position: RA 00:44  DEC 85:20
Since is almost indiscernible with 48x magnification due to light pollution this
cluster is hard to spot without prior references. I knew its position from the
sequence map of the RU Cep variable star near by. It is visible with the 120x
magnification though and looks irregular in shape. It has a few bright stars near
the center but no obvious central concentration. The stars are between 12 and 13
magnitude and weaker. Evaluated classification is Shapley E and Trumpler III-2-M
** This observing log was submitted via the IAAC Web form:

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