Astronomy | astro_images | M13_LRGB_web
M13, globular cluster in Hercules
4/28/2014 with 12.5" CDK scope and QSI 640 camera at f/5.3, 2 hours LRGB
M13, globular cluster in Hercules
4/28/2014 with 12.5" CDK scope and QSI 640 camera at f/5.3, 2 hours LRGB