UV Per further rise; fully grown superhumps Dear Colleagues, The Kyoto data on Dec. 26 shows that UV Per had risen by ~0.5 mag compared to Dec. 25. (Please note the object was still rather rapidly fading on Dec. 25). We have apparently witnessed the most important stage of the early development of superoutburst. Fully grown superhumps, with amplitudes nearly 0.4 mag, were seen. The period analysis will be undertaken by Iwamatsu-san. We are very looking forward to receiving any data from the collaboration members. Data should be sent to Iwamatsu-san (iwamatsu@kusastro.kyoto-u.ac.jp) with a cc: to me, or more directly to vsnet-campaign data list: vsnet-campaign-data@kusastro.kyoto-u.ac.jp (see [vsnet-campaign-data 1] for more explanations of the list). Regards, VSNET Collaboration team