V493 Ser (=SDSSJ155644.24-000950.2, UGSU) is undergoing an outburst. object date(UT) mag. code err. SERV493 20130708.50017 12.533V KW2 0.153 SERV493 20130708.50057 12.702V KW2 0.177 KW2: Kiso Wide-field Survey f=105mm lens (F/2.0) + SBIG ST-8XME