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TYC 2146-206-1


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Photometry and analysis of the eclipsing binary V909 Cygni
The first photoelectric observations of the photometrically neglectedeclipsing binary V909 Cygni in blue and yellow colours are presented. Itwas found that the orbital period of the system should be twice that ofgiven in the catalogues. The light curves were analysed by means ofWood's model simulation program WINK. The system was found to be adetached binary.

A Search for Metal-Deficient Stars
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Osservazione e dati astrometrici

Costellazione:Cigno
Ascensione retta:19h36m32.73s
Declinazione:+28°06'39.1"
Magnitudine apparente:9.817
Moto proprio RA:-15.1
Moto proprio Dec:-21.6
B-T magnitude:10.275
V-T magnitude:9.855

Cataloghi e designazioni:
Nomi esatti   (Edit)
TYCHO-2 2000TYC 2146-206-1
USNO-A2.0USNO-A2 1125-13424923
HIPHIP 96450
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