DV UMa superhump period From our (Ouda team and Mr. Rudolf Novak) data of DV UMa observed on 8, 9, 10, 11 Dec, we calculate the best candidate of superhump period of 0.089 day with PDM method, which is consistent with that provided by Dr. Lew Cook ([vsnet-alert 3812]). The eclipse observed on 10 and 11 Dec is deeper than that on 9 Dec. The eclipse depth on JD 2451524.1 is about 1.4 mag. Regards, Makoto Uemura, Taichi Kato