V509 Cas recent (cont'd) For general info see: http://www.kusastro.kyoto-u.ac.jp/vsnet/gcvs/CASV509.html YYYYMMDD(UT) mag observer 20041206.617 51 (Taichi Kato) 20050907.437 51 (Taichi Kato) 20050908.440 51 (Taichi Kato)