The dependencies of the phase of eclipse of the white dwarfs centre and the durations of the ascending and descending branches of the light curve on the binary systems parameters were computed using the spherically-symmetric approximation and the mor
e accurate model of the elliptical projection onto the celestial sphere of the companion (red dwarf) that fills its Roche lobe. The parameters of eclipses in the classical eclipsing polar OTJ 071126+440405 = CSS 081231:071126+440405 were estimated.
