(IAAC) Obj: Delta1 Lyr + Delta2 Lyr - Inst: Vixen 9x63 binoculars

[anonymous at sedna.atmob.org]

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

Observer: Stéphane Meloche
Your skills: Advanced (many years)
Date/time of observation: 2007/07/22 7h02 UT
Location of site: St-Joseph-de-Coleraine (Qc) Canada (Lat 45.96°, Elev )
Site classification: Exurban
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): Delta1 Lyr + Delta2 Lyr
Category: Multiple star.
Class: 
Constellation: Lyr
Data: mag 5.6 + 4.5  size 
Position: RA 18:54.5  DEC 36:54
Description:
In Lyra, at ~ 2° SE of Zêta1 Lyr. The 2 stars belong to the open cluster
Stephenson 1. Double star built for the binoculars, considering the large
angular separation between the components, which are very bright. Also, the
contrast of color is very interesting, Delta2 being orange and Delta1 being
greenish.
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