A Study of the Orbital Period Change of V1799 Ori Binary System

Abstract

V1799 Ori is a W Uma Eclipsing Binary with an orbital period of 0.29031 day. From the previous investigation of its light curve, it was found that this binary system has a continuous orbital period change. In this research, new photometric B V and R light curves have been obtained to compute time of minimum light. Using the previously published time of minima and the value obtained in this research, an O - C curve of V1799 Ori was constructed. It was found that, this curve trends toward a downward parabolic variation. The result reveals that the orbital period of V1799 Ori there was a decrease in the rate 0.000300268 seconds per year to 0.000299477 seconds per year.