To 2400x1600

Takahashi FSQ-130ED+645Reducer0.7X fl.455mm(f/3.5) BITRAN BJ-55L(KAI-29050)
Astrodon LRGB filters L13x10min. R4x5min. G4x5min. B4x5min. 10/18/2015(JST)
StellaImage7, MaxIm DL6.08 & PhotoshopCC,CCDStack2+

Region of Horsehead Nebula in Orion
05h40m52.9 -02 28 00 Dim 6'x4' Opacity 4