Apsidal motion in southern eccentric eclipsing binaries: YY Sgr, V523 Sgr, V1647 Sgr, V2283 Sgr and V760 Sco

Abstract

Several times of minimum have been gathered for the early-type eccentric eclipsing binaries YY Sgr, V523 Sgr, V1647 Sgr, V2283 Sgr, and V760 Sco. The O-C diagrams are analyzed and new values for the elements of the apsidal motion are computed.