V375 UMa likely superoutburst YYYYMMDD(UT) mag observer 20230310.697 <172C (Mitsutaka Hiraga) 20230313.7092 <159c (Yutaka Maeda) 20230314.6363 151:cG (Yutaka Maeda) 20230314.6363 151:cG (Yutaka Maeda) 20230314.972 14.34C (Gary Poyner) 20230315.242 14.13C (Gary Poyner)