23 May
2022
23 May
'22
4:53 a.m.
SS UMi superoutburst
YYYYMMDD(UT) mag observer 20220517.5589 <151c (Yutaka Maeda) 20220517.6916 <167C (Masayuki Moriyama) 20220518.5611 <153c (Yutaka Maeda) 20220521.040 144 (Gary Poyner) 20220521.5408 139cG (Yutaka Maeda) 20220521.5408 139cG (Yutaka Maeda) 20220521.637 142C (Mitsutaka Hiraga)