MASTER OT J172758.09+380021.5 likely superoutburst
YYYYMMDD(UT) mag observer 20230102.8771 <147c (Yutaka Maeda) 20230103.8655 <154c (Yutaka Maeda) 20230110.8827 <142c (Yutaka Maeda) 20230120.8694 144cG (Yutaka Maeda) 20230121.2610 14.44cG (Masao Funada)