The Analysis of Light Curves of XY Leonis Binary Star System

Abstract

This research was aimed to study the light curves of XY Leonis binary star system. The data was observed at Regional Observatory for the Public Nakhon Ratchasima, National Astronomical Research Institute of Thailand (Public Organization). The partial eclipsing binary W UMa type appeared on the light curves of XY Leonis binary star system. The light curves were shown to be asymmetric (Max I > Max II), there might be a hot spot on stars with corresponding to O’Connell Effect. The depth of light curves of primary more than secondary stars shown that the temperature of primary star higher than secondary star.