M13 is at a distance of 22200 light years in Hercules.
Image was taken with a QHY 268C color 26-megapixel CMOS camera.
Exposures were 3-minute sub frames for 2 hours at -15 degrees C.
Scope was a Celestron 11 inch EdgeHd on a GTO3 Astrophysics mount.
Guiding was done with a lodestar X2 CCD camera on a Vario guide scope.
Processing was done with Pixinsight's WBPP, StarTools, and Photoshop CS6 with Topaz addons.