Obs: Klaus Wenzel Wenigumstadt (Germany) Instr.: 317/1500mm Newton e-mail: wenzel.qso at t-online.de all observations are visual Object Date UT mag Mrk 421 20110518.858 12.9 SN 2011by 20110518.865 13.1 Her HZ 20110518.872 13.2 CrB R 20110518.875 12.8 Boo CR 20110518.882 13.9 Klaus Wenzel