Sharpless 126 (LBN 428) is a huge emission nebula located approximately 1,700 light-years away in Lacerta. My field of view would require six frames to catch all of it.
Luminance – 12x600s – 120 minutes – binned 1x1
RGB – 8x300s – 40 minutes each – binned 2x2
240 minutes total exposure – 4 hours
Imaged on a very windy October 11th, 2015 at the Danville Conservation Area (New Florence, Missouri) with a SBIG ST-8300M on an Astro-Tech AT90EDT at f/6.7 603mm.
LRGB - https://www.flickr.com/photos/dcrowson/21688196484/sizes/l
I also tried to capture this one with a modified DSLR at 100mm but the signal was too faint to show up in my stack of 5 minute exposures.