Obs: Klaus Wenzel Wenigumstadt (Germany) Instr.: 406/1829mm Newton e-mail: wenzel.qso at t-online.de all observations are visual Object Date UT mag PG 1424+240 20110506.875 14.0 Mrk 421 20110507.847 12.7 NGC 4151 20110507.865 11.3 Klaus Wenzel