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VW CEPHEI TIMES OF MINIMA FROM VISUAL OBSERVATIONS

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Sergio Foglia

F. Bisleri 11

I-20148 Milano

Italy

Received April 2000; revised January 2002

Abstract

268 visual observations of the eclipsing binary VW Cephei were made during the period 28 March 1999-2 February 2001. These data were used to find 21 times of minimum for this system, obtained using artificial neural networks computer programs written by A. Gaspani. The O-C graph is made using the Eclipsing Binaries Minima Database of the Cracow Observatory. A new ephemeris is suggested:

JD_minI  = 2445914.41317 + 0.27830721 E

± 0.01142 ± 0.00000013

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