NGC4145 in Canes Venatici

L;10min~70 (2014 / 3 / 23 , 4 / 1 , 5 / 6) R;10min~6 G;10min~6 B;10min~6 (2014 / 3 / 30)
21 f6.0 Newtonian ST7-Elpis