Natural color composition from the emission of ionized elements, R=80%Hydrogen+20%Sulfur, G=100%Oxygen and B=85%Oxygen+15%Hydrogen to compensate otherwise missing H-beta emission. This composition is very close to a visual spectrum.

More information:

http://en.wikipedia.org/wiki/Pelican_Nebula



Camera QHY9,

Optics Meade LX200 GPS 12" forced to @ f4.65

Guiding with SXV-AO active optics unit 11Hz

Filters

Baader H-alpha 7nm, 6h, 20 min subs

Baader O-III 8,5nm 1h, 10 min. subs binned 3x3

S-II 1h 40, 10 min subs binn