PU Per superoutburst (Supercycle about a year) YYYYMMDD(UT) mag observer 20211119.6658 <155cG (Yutaka Maeda) 20211120.6376 <150c (Yutaka Maeda) 20211122.919 <147 (Gary Poyner) 20211124.1721 15.181zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211124.2595 14.872zg (Zwicky Transient Facility Lasair (Masci+ 2019)) 20211125.6244 148c (Yutaka Maeda) 20211126.6073 150c (Yutaka Maeda)