NN Cen outburst YYYYMMDD(UT) mag observer 20020813.521 <144 (Rod Stubbings) 20020814.397 <140 (Rod Stubbings) 20020816.442 <138 (Rod Stubbings) 20020826.474 <137 (Rod Stubbings) 20020827.421 <140 (Rod Stubbings) 20020831.466 146 (Rod Stubbings) 20020831.482 146 (Rod Stubbings) 20020901.394 147 (Rod Stubbings)