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GO Com: definite period change! Dear Colleagues, We have just received new data from Donn Starkey. The analysis of the data has confirmed the anomalous period change reported in [vsnet-campaign-dn 3766]. The object must have undergone a major period increase during the past 1-2 days. Such a striking period change was very unexpected for an SU UMa-type dwarf nova in the middle of its superoutburst plateau. The overall (averaged) period derivative dot(P)/P = +8x10^(-5). This value is rather unusually large for a system with this superhump period. Overall light behavior and period change may suggest the resemblance to V1028 Cyg (Baba et al. 2000, PASJ 52, 429). Regards, Taichi Kato VSNET Collaboration team
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