Obs: Klaus Wenzel Wenigumstadt (Germany) Instr.: 406/1829mm und 317/1500mm Newton e-mail: wenzel.qso at t-online.de all observations are visual Object Date UT mag S5 0716+71 20110327.840 13.9 NGC 4151 20110327.861 11.4 Mrk 421 20110327.868 12.2 SN 2011ao 20110327.875 13.8 Klaus Wenzel