YZ Cnc possible superoutburst YYYYMMDD(UT) mag observer 20140105.012 139 (Gary Poyner) 20140109.890 <141 (Eddy Muyllaert) 20140111.837 <137 (Eddy Muyllaert) 20140112.558 <134 (Tsuneo Horie) 20140118.933 112 (Eddy Muyllaert)