HD-163151 - A NEW W UMA TYPE SYSTEM

HD 163151 is discovered to be a new variable as a part of a W UMa syst em. In this paper we present complete uvby light curves. Additional Cr awford H-beta and Johnson BV data are also obtained. A detailed photom etric analysis based on these observations is presented using the WD c ode. Several tests have been carried out concerning mass ratio and eff ective temperatures. The best fitting was achieved with q = 0.27 and T -1 = 6450 K (fixed) and T-2 = 6130 K. Moreover, the light curves show evidences of spots in one of the components.