V1504 Cyg outburst YYYYMMDD(UT) mag observer 20000731.982 <154 (M. Reszelski) 20000801.092 <157 (G. Poyner) 20000801.917 <145 (E. Muyllaert) 20000801.930 <148 (T. Kinnunen) 20000801.935 154 (M. Reszelski) 20000801.964 160 (G. Poyner) 20000802.910 <145 (E. Muyllaert) 20000802.930 <151 (T. Kinnunen) 20000803.015 <150 (M. Reszelski) 20000803.875 147: (P. A. Dubovsky) brightened?