The Butterfly Nebula in Cygnus (close-up; not all of it)
8/10/9 x 10 min each of RGB, 26x20min H-Alpha
Camera: Apogee U16M (16803) w Gen II Astrodon RGB and H-Alpha
Scope: 12.5" Planewave CDK
Mount: Paramount ME
Guiding SBIG ST402ME and Astrodon MMOAG
RGB and H-Alpha processing in PixInsight; Blend of H-Alpha w RGB and clean-up of column defect and save-for-web in PS CC