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[vsnet-alert 118] revised period of AL Com

    We have been observing AL Com since Apr. 7 at Ouda Station, Kyoto
University.  The hump-like features reported independently by J. Patterson
and J. A. DeYoung (IAUC 6157) have once decayed as we reported earlier.
The hump features now seem to show a more usual superhump-like profile,
although the amplitude is still very small (~0.05 mag).  A period analysis
using phase dispersion minimization (PDM) has yielded a period of 0.05666
+/- 0.00002 day from the whole data set until Apr. 12, after removing a
general trend of decline.
    One would be surprised to see that this value almost perfectly coincides
with the orbital period of WZ Sge (0.056688 day).  The superhump period of
WZ Sge was reported to be 0.05714 day.

Regards,
Taichi Kato and Daisaku Nogami
(Ouda team)

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