Light Curve of the Eccentric Eclipsing Binary GSC 3152-1202

Volume 39 number 2 (2011)

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Robert K. Buchheim

18 Altimira, Coto de Caza, CA 92679; rbuchheim@earthlink.net

Abstract

A complete light curve of this eccentric (~2.094d) eclipsing binary system has been determined, in B, V, and R bands. The primary and secondary minima are slightly different in depth, and the color index does not change during either primary or secondary eclipse. Newly-determined times of minimum confirm the previously-suspected rapid change in the orbital phase of the secondary minimum, implying significant apsidal motion.