(IAAC) Obj: Sheliak (Beta Lyr) - Inst: 9x63 binoculars

[anonymous at sedna.atmob.org]

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

Observer: Stéphane Meloche
Your skills: Intermediate (some years)
Date/time of observation: 2004/08/20 00h54 EST
Location of site: Ste-Catherine-de-Hatley, Qc, Canada (Lat 45.2083° N, Elev 343 m)
Site classification: Exurban
Sky darkness: 5.9 <Limiting magnitude>
Seeing:  <1-10 Seeing Scale (10 best)>
Moon presence: None - moon not in sky
Instrument: 9x63 binoculars
Magnification: 
Filter(s): 
Object(s): Sheliak (Beta Lyr)
Category: Multiple star.
Class: 
Constellation: Lyr
Data: mag 3.8  size 
Position: RA 18:50  DEC 33:22
Description:
Sheliak is a multiple star with 4 members. With binos, I split only the two main components, the others are invisible due to great difference of magnitude. The primary is yellowish and the brightness of the secondary is too low for me to give a color. In this observation, I notice an amusing 3-D effect between the primary and the secondary.
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