SS UMi superoutburst SS UMi appears to be undergoing a superoutburst. YYYYMMDD(UT) mag observer 20120303.885 <146 (Gary Poyner) 20120304.801 <146 (Gary Poyner) 20120307.801 <146 (Gary Poyner) 20120315.567 <138 (Takuichiro Onishi) 20120317.092 139 (Pavol A. Dubovsky) 20120318.816 136 (Gary Poyner) 20120318.941 134 (Jose Ripero)