NGC4559 in Coma Berenices
Magnitude 9.9 Size10.5' 23 million light-years

L;5min×261(2015, 2018/1/24, 3/22, 4/11, 17) R;10min×16 G;10min×14 B;10min×13(2015, 2018/ 4/19)
21cm f6.0 Newtonian ST8XME
(星ナビ2019年4月号掲載)