Re: WZ Sge: superhump period change Dear Colleagues, We have apparently found the final answer! The there was an interchange of maxima from early superhumps to true superhumps around Aug. 5.8 UT, this affected the period analysis on Aug. 5. Before then, the maxima of true superhumps were superimposed on the profile of early superhumps. By taking this finding into account, we have been able to determine the period of true superhumps as 0.057157 +/- 0.00077 d. This period well expresses all maxima up to Aug. 7.07 UT. Regards, Taichi Kato VSNET Collaboration team