OI 158 20171231.024 16.4V MMA OJ 049 20171231.035 17.3V MMA OJ 287 20171231.064 14.5V MMA #Observer: Massimiliano Martignoni (MMA) #Observatory: Stazione Astronomica Betelgeuse (B75), Magnago, Italy #Telescope: Schmidt-Cassegrain 0.25m-f/10.0 #CCD: KAF0261E