(IAAC) Obj: NGC 1817 - Inst: Vixen 9x63 binoculars

**anonymous@sedna.atmob.org**

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

Observer: Stéphane Meloche
Your skills: Advanced (many years)
Date/time of observation: 2006/11/25 6h18 UT
Location of site: Coaticook (Qc), Canada (Lat , Elev 420m)
Site classification: Suburban
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): NGC 1817
Category: Open cluster.
Class: 
Constellation: Tau
Data: mag 7.7  size 16'
Position: RA 05:12.4  DEC 16:41
Description:
In Taurus, at ~ ¼ degree of NGC 1817. Second member of the double cluster in
Taurus, less bright than NGC 1817 . By using NGC 1807 for comparison, I note
quickly that NGC 1817 is less spectacular and of more reduced size. I observe 4
individual stars and those forms a zigzag inside the cluster in an axis SE-NW.
These stars are TYC 1282-353-1, TYC 1283-896-1, TYC 1283-1086-1 and TYC
1283-779-1. I also note that these stars are less bright than stars forming the
curve inside NGC 1807. In the same, the nebulosity of background of NGC 1817 is
less bright than it's neighbor.

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