NGC6888 - The Crescent Nebula

Early attempt at HaRGB imaging

(9.4 hrs exposure - 4.5 hrs Ha 5 nm 30 min subs; R 2 hrs 10 min subs; G 1 hr 5 min subs; B 1.9 hrs 10 min subs; all binned 1x1, August 2010)