MR UMa is undergoing an outburst. Possibly a superoutburst based on the previous supercycle. YYYYMMDD(UT) mag observer 20090421.831 <143 (Wolfgang Kriebel) 20090421.922 <153 (Gary Poyner) 20090424.837 <143 (Wolfgang Kriebel) 20090425.998 134 (Gary Poyner)