VdB-142 "The Elephant Trunk Nebula" (1,500 ly)
Click on the image for the Full Resolution
 

Material :
 

    - Losmandy HGM TITAN / Gemini Goto mount
    - William Optics FLT-110 f/6.5 (715mm) Triplet APO SD refractor
    - SBIG ST-10XME at -26°C
    - SBIG CFW-8A
 

Accessories :

    - William Optics FLT-110 field flattener

    - Astronomik 13nm Hα CCD filter

    - Astrodon™ 1:1:1 Tru-Balance™ RGB Filters

Conditions :

    - Clear sky : Image taken in the darknest site in France (Quercy, in the Lot state) and in my backyard

    - New Moon & Gibbous Moon

Exposures : (Total on 3 nights : 15h05min.)

Luminance :

Hα R=  (65 exp. x 10 min) + (51 exp. x 5 min.) all in binning 1x1

Color information :

R = Hα + R

G = B = 8 exp. x 5 min. (binning 2x2)