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We report the discovery of a relatively bright eclipsing binary system, whichconsists of a white dwarf and a main sequence K7 star with clear signs ofchromospheric and spot activity. The light curve of this system shows$\sim0.2$mag ellipsoidal variability with a period of 0.297549d and a shorttotal eclipse of the white dwarf. Based on our analysis of the spectral andphotometric data, we estimated the parameters of the system. The K7V star istidally deformed but does not fill its Roche lobe (the filling factor is about0.86). The orbital inclination is $i=73^\circ.1\pm 0^\circ.2$, the mass ratiois $q=M_2/M_1\approx 0.88$. The parameters of the K7V star are $M_2\approx0.64$M$_{\odot}$, $R_2=0.645\pm 0.012$R$_{\odot}$, $T_2\approx 4070$K. Theparameters of the white dwarf are $M_1\approx 0.72$M$_{\odot}$, $R_1=0.013\pm0.003$R$_{\odot}$, $T_1=8700\pm 1100$K. Photometric observations in differentbands revealed that the maximum depth of the eclipse is in the \textit{SDSS r}filter, which is unusual for a system of a white dwarf and a late main sequencestar. We suspect that this system is a product of the evolution of a commonenvelope binary star, and that the white dwarf accretes the stellar wind fromthe secondary star (the so-called low-accretion rate polar, LARP).

Discovery of a pre-cataclysmic binary with unusual chromaticity of the eclipsed white dwarf by the GPX Survey