New times of minima and ephemeris for several OB eclipsing binaries

¹ Astronomical Institute, Charles University, V Holešovičkách 2, 180 00 Praha 8, Czech Republic
² Section of Astrophysics, Astronomy and Mechanics, Department of Physics, University of Athens, 157 83 Zographos, Athens, Greece
³ Dr. Remeis-Sternwarte Bamberg, Astronomical Institute, University Erlangen-Nürnberg, Sternwartstraße 7, 96049 Bamberg, Germany
⁴ Astronomical Observatory, Auckland, New Zeeland

Send offprint request to: P. Mayer

Received: 18 August 1997
Accepted: 12 December 1997

Abstract

New times of minimum light were measured for several early-type eclipsing binaries: V337 Aql, V1182 Aql, V1331 Aql, IU Aur, QZ Car and V382 Cyg. The O-C diagram for these systems is discussed and new ephemeris is given for AH Cep; observation of AQ Cir is added. It is shown that the scatter of times of minima is several times larger than the measuring errors for most of the binaries studied.