Title: Gum12, Gum15 and Pencil Nebula NGC2736 in Vela
Optic: Canon EF200f2.8 at f/2.8
Filter: Baader 50mm LRGB
Camera: SBIG STL11000M C2 at -20°C, selfguiding
Ha 13x8min, earlier darks and bias used
RGB 24:24:24min, subexposure 4min,
26x Darks, 51x Bias, 59x Sky Flat
Location: Saharasky, Marocco
Date: 2013-12-03, 2013-12-05
Preprocessing Pixinsight:
Image Calibration, CosmeticCorrection, StarAlignment, Image Integration, RGB STF-Stretching, Ha masked stretch script, Ha(RGB) Script
PS: color enhancement, remove gradients, histogram, curves, minimum filter, cosmetic correction on Rigel