WZ Sge superhump period update Dear Colleagues, Using the new data (D. Starkey, J. Pietz, fully analyzed Kyoto Aug. 13 data and partly analyzed Kyoto Aug. 14 data), we have refined the superhump period as follows: 0.0571907(73) d. Please note the period determination has been affected by the strong beat phenomenon. We must also comment on the apparent disappearance of "clear hump maxima" in the most recent Pietz's data. We will be able to report later on the current "unexpected" change using the newly coming & analyzed data. Please keep the closest watch! Regards, Taichi Kato VSNET Collaboration team

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