HO Del superoutburst YYYYMMDD(UT) mag observer 20181027.9076 <138 (Eddy Muyllaert) 20181028.903 155 (Gary Poyner) 20181029.890 <155 (Gary Poyner) 20181102.9007 <141 (Eddy Muyllaert) 20181103.5070 140cG (Yutaka Maeda) 20181104.451 140 (Hiroyuki Maehara) 20181104.4933 143cG (Yutaka Maeda) 20181105.4878 141cG (Yutaka Maeda)