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Dear colleagues, I have now made all of my Var73 Dra observations available at my web site, showing the evolution of this object over the course of 3 nights (Dec 08/09, 09/10, 1O/11). Here are the results of my data analysis. Over the 3 nights, I collected 390 observations of Var73 Dra. During the first 2 nights, no clear hints of superhumps were present, and the average amplitude of the light modulations was about 0.10 mag. This increased considerably on December 10/11, at the moment superhumps started to appear. The amplitude was now 0.21 mag. On the basis of the December 10/11, 2002 observations, and using the PDM method, I found a superhump period value of 0.1069 +/- 0.002 d (short time basis). Our observations thus confirm the superhump period value determined by the Kyoto team during the October 2002 outburst of Var73 Dra, and the fact that this is a dwarf nova IN the period gap. In addition, our observations establish the superoutburst nature of the present outburst, as was already assumed from a set of CCD observations obtained by Donn Starkey one night ago (see vsnet-superoutburst 1761). More important is the conclusion that the supercycle of Var73 Dra is around 60 days, similar to ER UMa type dwarf novae. Var73 Dra therefore is the first ER UMa type dwarf nova IN the period gap, confirming Taichi Kato's assumption [vsnet-alert 7588]. Kind regards, Tonny Vanmunster CBA Belgium Observatory email : Tonny.Vanmunster@cbabelgium.com website : www.cbabelgium.com
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