Mewlon-300CRS with Reducer F7.2　fl.2160mm Bitran BJ-53L Starlight Xpress OAG
Filter AstroDon Tru-Balance E-Series L270min. R10min. Ha10min. G15min. B15min. LRGB 03/27/2014(JST)
StellaImage7,CCDStack2, MaxIm DL5.23 & PhotoshopCC

NGC5457 M101 Galaxy in Ursa Major
14h03m12.7 +54 21 12 Mag(V) 7.9 Dim 28.8'x26.9' SB14.9 SAB(rs)cd I