Mewlon-300CRS with Reducer F7.2　fl.2160mm Bitran BJ-53L Starlight Xpress OAG
Filter AstroDon Tru-Balance E-Series L180min. R20min. Ha15min. G20min. B15min. LRGB 020/27-28/2017(JST)
StellaImage8, MaxIm DL6.08 & PhotoshopCC

NGC4258 (M106 Galaxy in Canes Venatici)　
12h18m58.1s +47 18 07 Mag(V)8.4 Dim18.6'x7.2' SB13.6 SAB(s)bcII- III