NGC5921 in Serpens Caput Magnitude 11.5 / 65million light-years L;5min×223 (2016 / 3 / 16 , 2019 / 5 / 21, 24 , 26 , 28 , 29) R;10min×11 G;10min×12 B;10min×11 (2016 / 2 / 17 , 3 / 15 ) 21cm f6.0 Newtonian ST8XME (星ナビ2019年9月号掲載)