PTF1 J071912.13+485834.0 outburst This is an AM CVn-type object (probably a superoutburst). Time-resolved photometry is encouraged. YYYYMMDD(UT) mag observer 20171219.7311 <153c (Yutaka Maeda) 20171220.7546 <161c (Yutaka Maeda) 20171222.8286 <151c (Yutaka Maeda) 20171226.8688 153c (Yutaka Maeda)