BR Lup superoutburst The SU UMa-type dwarf nova BR Lup may be undergoing a superoutburst. The latest reported superoutburst occurred in 1998 April - May (Stubbings). YYMMDD(UT) mag observer 980829.407 146 (R. Stubbings) 980831.400 <147 (R. Stubbings) 980910.446 <147 (R. Stubbings) 980910.446 <148 (R. Stubbings) 980912.399 150 (R. Stubbings) 980915.401 148 (R. Stubbings) 980917.429 140 (R. Stubbings)