Mewlon-300CRS with Reducer F7.2　fl.2160mm Bitran BJ-53L Starlight Xpress OAG
Filter AstroDon Tru-Balance E-Series L180min. R20min. Ha20min. G20min. B20min. LRGB 12/05/2013(JST)
StellaImage7,CCDStack2, MaxIm DL5.23 & PhotoshopCC

NGC3031 M81 Galaxy in Ursa Major
09h55m38.5 +69 03 40 Mag(V) 6.9 Dim 26.9'x14.1' SB13.2 SA(s)ab I-II