V452 CAS 20121210.865 <18.5Rc MMA PSN J03541733+3630387 20121210.932 16.0Rc MMA #Observer: Massimiliano Martignoni (MMA) #Observatory: Stazione Astronomica Betelgeuse (B75), Magnago, Italy #Telescope: Schmidt-Cassegrain 0.25m-f/10.0 #CCD: KAF0261E