According to Rod Stubbings, the suspected dwarf nova DM CMa is undergoing an outburst. YYYYMMDD(UT) mag observer 20101002.678 <140 (Rod Stubbings) 20101008.603 <142 (Rod Stubbings) 20101009.717 <144 (Rod Stubbings) 20101011.647 <147 (Rod Stubbings) 20101101.549 <147 (Rod Stubbings) 20101105.653 147 (Rod Stubbings)