V589 Her likely superoutburst
YYYYMMDD(UT) mag observer 20220208.8042 <150c (Yutaka Maeda) 20220210.8120 <152c (Yutaka Maeda) 20220213.4457 18.461zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220218.4712 15.285zr (Zwicky Transient Facility Lasair (Masci+ 2019)) 20220218.4958 15.113zg (Zwicky Transient Facility Lasair (Masci+ 2019))
vsnet-alert@ooruri.kusastro.kyoto-u.ac.jp