I reported my time series observations of BC UMa from images taken remotely using 0.355-m f/6.2 Schmidt-Cassegrain telescope of Abbey Ridge Observatory (Canada): May 6, 2022: http://ooruri.kusastro.kyoto-u.ac.jp/mailarchive/vsnet-obs/95143 May 7, 2022: http://ooruri.kusastro.kyoto-u.ac.jp/mailarchive/vsnet-obs/95148 May 10, 2022: http://ooruri.kusastro.kyoto-u.ac.jp/mailarchive/vsnet-obs/95162 May 11, 2022: http://ooruri.kusastro.kyoto-u.ac.jp/mailarchive/vsnet-obs/95167 I detected the superhumps and noticed that BC UMa is fades rapidly: 2022-05-06 02:53 UT 13.616 CV +/- 0.002 2022-05-07 02:01 UT 13.804 CV +/- 0.002 2022-05-10 02:21 UT 14.853 CV +/- 0.009 2022-05-11 02:59 UT 16.607 CV +/- 0.028 With best regards, Filipp Romanov.