DY Per at intermediate state YYYYMMDD(UT) mag observer 20000421.892 122 (G. Poyner) 20000422.851 125 (M. Reszelski) 20000422.892 123 (H. McGee) 20000422.903 122 (G. Poyner) 20000423.833 124 (M. Reszelski) 20000423.887 123 (H. McGee) 20000424.887 122 (R. J. Bouma) 20000426.867 124 (M. Reszelski) 20000426.940 124 (H. McGee) 20000427.851 126 (M. Reszelski) 20000428.860 124 (M. Reszelski) 20000429.914 126 (M. Westlund) 20000501.835 125 (M. Reszelski) 20000506.917 123 (R. J. Bouma) 20000511.908 123 (R. J. Bouma) 20000512.917 126 (M. Reszelski) 20000513.901 122 (R. J. Bouma) 20000515.956 125 (M. Reszelski) 20000520.056 121 (G. Poyner) 20000520.922 120 (R. J. Bouma) 20000522.085 122 (G. Poyner) 20000524.083 122 (G. Poyner) 20000525.940 118 (R. J. Bouma) 20000529.998 116 (R. J. Bouma) 20000604.997 117 (R. J. Bouma) 20000607.962 117 (R. J. Bouma) 20000613.010 117 (R. J. Bouma) 20000619.971 117 (R. J. Bouma) 20000627.067 119 (G. Poyner)