IC1318, Eastern portion of the Gamma Cygnus Nebula.
A glowing Hydrogen-Alpha region just east of Sadr, the 2nd magnitude central star of Cygnus the swan. This region reminds me of the  Lagoon Nebula. But this region is much larger and further north in the summer's Milky Way. It looks to me like two islands separated by a dark sea or strait, thus my favorite name for it, the Sadr Strait. This is the Eastern part of a much larger area called the Gamma Cygnus Nebula, which extends to the left of the bright star Sadr as well as above and below this view.

4" refractor at f5, with modified Canon 40D DSLR camera at Prime Focus
8 photos of 480 seconds each at ISO 1600
All photos aligned, then averaged together into one, and then brightness and contrast enhanced. The above is a cropped from the original.