NGC-7023 Iris Nebula (1,300 lys)
Click on the image for the Full Resolution

Equipment :

    - Losmandy HGM TITAN / Gemini Goto mount
    - William Optics FLT-110 Triplet ED APO refractor used at 715mm
    - SBIG ST-10XME at -23°C
    - SBIG CFW-8A
 

Accessories :

   - William Optics FLT-110 Field Flattener
   - Astrodon™ 1:1:1 Tru-Balance™ LRGB Filters

Conditions :

    - New Moon

Exposures : (Total : 10h50min. for the Luminance only on 3 nights)

    Luminance :

L=  130exp. x 5 min  all in binning 1x1
 

Color information :

R= G = B = 12 exp. x 5 min. (binning 1x1)