17 Sep
2021
17 Sep
'21
6:24 p.m.
ASASSN-15sn possible superoutburst Known SU UMa star. YYYYMMDD(UT) mag observer 20210908.6476 <153c (Yutaka Maeda) 20210916.2647 15.384zr (Zwicky Transient Facility Lasair (Masci+ 2019))