PSN J08394202+6058160 20121204.991 16.8Rc MMA PSN J02423962+3931555 20121204.908 16.7Rc MMA V452 CAS 20121204.901 <18.0V MMA #Observer: Massimiliano Martignoni (MMA) #Observatory: Stazione Astronomica Betelgeuse (B75), Magnago, Italy #Telescope: Schmidt-Cassegrain 0.25m-f/10.0 #CCD: KAF0261E