TYC 2146-206-1

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 Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1970ApJS...22..117B&db_key=AST
Stellar Spectra in Milky way Regions. II. a Region in Cygnus. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1950ApJ...112...90M&db_key=AST

INHABITED SKY