BASIC SYSTEM PARAMETERS AND A MORE GENERAL SPOT SOLUTION OF THE SV CAMELOPARDALIS LIGHT-CURVE

SV Cam has been monitored at Konkoly Observatory since 1973. Based on these data we have chosen the light-curve best suitable for the determ ination of the system parameters and we rediscuss the eclipse paramete rs of the binary system suggesting a mass ratio of m(2)/m(1) = 0-6. Al though the effect of spottedness on this particular light-curve was re latively low we analyze it in a second step to derive spot parameters. Under the assumption of maximum contrast between a stellar spot and i ts surroundings, Zeilik et al. (1988) analyzed the SV Cam light curve and derived spot parameters of the primary star in the binary system. We base our analysis on another model of an extended active region and spot group, because this is the usually observed inhomogeneous struct ure on the Sun. In our model the spot filling factor inside the active region is a free parameter, and hence the mean contrast of the spot g roup, too. We find a strongly nonlinear correlation between the contra st and the stellar latitude solutions. Because of this feature, it is possible to restrict the position of the active region on high stellar latitudes in case that the mean temperature of the spot group is cool er by 270K or more than the normal surface.