(IAAC) Obj: NGC 1817 - Inst: 12.5" f5 Dob


Observer: Scott Hogsten
Your skills: Intermediate (some years)
Date/time of observation: 02/10/1999 3:15 GMT
Location of site: Grove City, Ohio (Lat 40, Elev )
Site classification: Suburban
Sky darkness: 4.5 <Limiting magnitude>
Seeing: 3 <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 12.5" f5 Dob
Magnification: 60x 120x
Filter(s): None
Object(s): NGC 1817
Category: Open cluster.
Constellation: TAU
Data: mag 7.7  size 16'
Position: RA 05:12  DEC +16:42
A double cluster with nearby NGC 1807. This clusters is much dimmer
with more stars. I could counted about 25 stars with many others just
beyond the limits of my seeing conditions. This gave cluster a slight
shimmering effect and I think it made the cluster seem denser than it
actually is. Burnhams gives a count of 50 stars for this cluster.
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