WZ Sge: superhump period update Dear Colleagues, Brian Martin, Michael Richmond and Donn Starkey have kindly provided high quality data on August 5-7 (some of these announcements were already made in vsnet-campaign-dn or vsnet-obs). We have been able to extend the baseline, and refined the superhump period as 0.0571372 +/- 0.0000050 d. This period well fits all superhump maxima up to Aug. 7.425 UT. Regards, Taichi Kato VSNET Collaboration team