Multicolor Photometry of the WZ Sge-Type Cataclysmic Variable AY Lac

During the outburst of the dwarf nova AY Lac in October 2020, the authors obtained more 2200 CCD-frames in UBVRcIc-bands of the variable. An analysis of the observed photometric series showed that superhumps were observed on this type SUWZ star both before early on and in the “B” stage, with periods of 0 d .058074 and 0 d .059418, respectively. The change in the shape of the superhumps during the outburst was studied, values of P dot = P / P = 6.6 ∙10 -5 and a period excess of ε = 0.024 were found, and a most probable ratio q = 0.11 of the masses of the components was estimated, as well as color temperatures and a number of other quantities. It is shown that AY Lac is a typical WZ Sge-type star in terms of all the characteristics that were studied.