ИСТИНА

The star was observed with the 50-cm and 60-cm telescopes and a CCD photometer during the variable’s outburst of August–September 2014 and in a period of quiescence in October–November 2016. The light curves of ASASSN-13cx were plotted by these data. We used two models to determine the parameters of the ASASSN-13cx in different activity states. Parameters of the system are derived from the light curves in quiet state using a “composite” model that takes into account the presence of a hot spot on the lateral surface of the geometrically thick disk and of a region of enhanced energy release near the disk edge, at the base of the gas low (the so-called “hot line”). The light curves obtained during the outburst are also used together with a “spiral” model that additionally takes into account the presence of geometric perturbations on the accretion disk surface. The parameters of ASASSN-13cx determined using these models provide good accuracy in reproducing the system’s light curves in both states. The basic parameters of the system have been determined for the first time: the component mass ratio q =M1/M2 = 7.0, the orbital inclination i = 79.9-80.1o, the distance between the components’ centers of mass a0 = 0.821(1)Ro and sizes and temperatures of the stars: R1 =0.0102(4)Ro, T1 = 12 500+/- 280 K, R2 = 0.194(3) Ro, T2 = 2 550+/- 400 K, corresponding to M4–9V for the spectral type of the secondary. Parameters of the accretion disk have been derived for both activity states. The mass of matter in the accretion disk increased by almost a factor of two during ~400 orbital periods in quiescence. The ASASSN-13cx system is confirmed to be a SU UMa variable.