DY Per brightening from the deep minimum YYYYMMDD(UT) mag observer 20020711.053 139 (Gary Poyner) 20020711.692 125 (Mitutaka Hiraga) 20020712.047 139 (Gary Poyner) 20020713.327 138 (Mike Simonsen) 20020714.069 138 (Gary Poyner) 20020715.060 138 (Gary Poyner) 20020715.312 138 (Mike Simonsen) 20020715.992 139 (Georg Comello) 20020716.005 138 (Eddy Muyllaert) 20020716.010 138 (Reinder J. Bouma) 20020718.990 139 (Eddy Muyllaert) 20020719.994 139 (Eddy Muyllaert) 20020720.039 139 (Georg Comello) 20020727.003 139 (Georg Comello) 20020727.057 133 (Gary Poyner) 20020729.060 131 (Gary Poyner) 20020801.655 133 (Mitutaka Hiraga) 20020803.297 130 (Mike Simonsen) 20020804.275 129 (Robert J. Modic)