Abstract:We have secured and analyzed three-color light curves of V524 Monocerotis with the 2003 version of the Wilson–Devinney code. We confirmed that V524 Mon is a shallow W-type contact binary system with a mass ratio of $q$$=$ 2.099 and a degree of contact factor of $f$$=$ 7.7%. Based on the new eight times of the light minima and those published by previous investigators, we find that the orbital period of the binary shows a long-term decrease ($dp/dt$$=$$-$1.52 $\times$ 10$^{-10}$), while it undergoes a cyclic os… Show more
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