HX Peg bright outburst YYYYMMDD(UT) mag observer 20011213.837 <139 (Eddy Muyllaert) 20011214.790 <139 (Eddy Muyllaert) 20011216.799 <139 (Eddy Muyllaert) 20011219.051 136 (Mike Simonsen) 20011220.803 128 (Maciej Reszelski) 20011220.842 129 (Eddy Muyllaert) 20011221.867 123 (Gary Poyner)