AB Nor superoutburst YYYYMMDD(UT) mag observer 20210829.426 <154 (Rod Stubbings) 20210830.438 143 (Rod Stubbings) 20210901.474 146 (Rod Stubbings) 20210902.433 145 (Rod Stubbings) 20210906.458 147 (Rod Stubbings) 20210907.423 147 (Rod Stubbings)