to 1200x950
Mewlon-300CRS with Reducer F7.2　fl.2160mm Bitran BJ-53L Starlight Xpress OAG
Filter AstroDon Tru-Balance E-Series L130min. R20min. G20min. B20min. LRGB 10/27-10/28 2013(JST)
StellaImage7,CCDStack2, MaxIm DL5.23 & PhotoshopCC

NGC891　in Andromeda Type SA(s)b?:sp HII: Gallaxy
Mag 9.9　Dim 11.7x1.6　02h22m33.8s　+42 21 01