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PU CMa: first clear superhump detection! Dear Colleagues, We have received a run from Berto Monard, which clearly shows the presence of superhumps! This observation finally (most probably) confirms the SU UMa-type nature of PU CMa. Although this single run was not yet sufficient to determine the superhump period, runs on different nights or at different longitudes will certainly be able to pin down the true superhump period, now that we have the precise orbital period. The present superoutburst is thus most promising among the recent outbursts of PU CMa! Please observe as long as possible! Regards, Taichi Kato VSNET Collaboration team
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