OU Vir superoutburst UGSU+E YYYYMMDD(UT) mag observer 20230526.3254 <17.574g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230526.4870 <147c (Yutaka Maeda) 20230526.947 <147 (Gary Poyner) 20230527.969 <147 (Gary Poyner) 20230529.2339 <17.015g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230530.2482 15.346g (ASAS-SN Sky Patrol Photom. DB (Hart+2023; Shappee+2014)) 20230602.4840 145:c (Yutaka Maeda) 20230602.4840 145:c (Yutaka Maeda)