Аннотация:The eclipse curves of the dwarf nova Z Cha are analyzed in order to determine the structure of the accretion disk of the star in active and inactive states. Brightness temperatures and bolometric luminosities of the accretion disk are given in a table, and the effect of gravitational radiation on the brightness temperatures of the intermediate and peripheral zones of the disk, bolometric luminosity, and the mass loss rate from the red star is discussed in detail.