MRK421 observation needed For general info see: http://www.kusastro.kyoto-u.ac.jp/vsnet/gcvs/MRK421.html Most recently reported (up to 100) observations: YYYYMMDD(UT) mag observer 20050530.953 129 (Guus Gilein) Subscribe to new VSNET mailing lists! : http://ooruri.kusastro.kyoto-u.ac.jp/mailman/listinfo/