VW Hyi superoutburst The SU UMa-type dwarf nova VW Hyi is definitely undergoing a superoutburst, as indicated by the following observations. The last superoutburst of VW Hyi was observed in 1999 November-December. YYYYMMDD(UT) mag observer 20000507.449 136 (R. Stubbings) 20000510.455 135 (R. Stubbings) 20000514.178 <124 (D. Overbeek) 20000515.489 93 (R. Stubbings) 20000515.689 94 (D. Overbeek) 20000516.153 90 (D. Overbeek) 20000516.419 89 (R. Stubbings) 20000517.398 88 (R. Stubbings) 20000517.469 87 (A. Pearce)