NGC6888 (C27) - The Crescent Nebula in Cygnus. Emission nebula around central hot star WR136.

Imaged using luminance and narrowband filters. Spectrum of WR136 taken at HAG is here

iTelescope T7 scope, Spain, 17" Planewave. SBIG STL-11000M camera
1 x 10min, 1 x 5min, L(bin x1), HOS(bin x2), FOV approx 19' x 28'
2014-07-28 @ 22:45 UT (L), 2014-07-03 @ 22:45 UT (HOS)