The North America Nebula
In Cygnus: the North America nebula and (right) the Pelican nebula
100-400mm @ 300mm f/5.6 ISO6400 101 x 64s = 107.7 minutes
I hope you can guess how the North America Nebula got its name. (The shape.)
The reddish parts of this image are again due hydrogen-alpha emission. This photo was taken from a dark site but the red is not as clear as it could be...