M-14 (NGC-6402)

M-14 (NGC-6402)

M-14 (NGC-6402) is a fine globular star cluster located in the constellation of Ophiuchus, about half a degree north of Delta Ophiuchi. It is approximately 30,000 light years from Earth and is 100 light years in diameter. It was discovered by Charles Messier in 1764. It contains over 200,000 stars, including over 70 variable stars.
This image, acquired on July 31, 2014 is a 30 minute integration of 3 minute exposures through the Celestron C-11 at f/2 using the HyperStar III imaging system and the Starlight Express SXVR-H694 color CCD camera, operating at -10 degrees below ambient temperature and binned 1 X 1. Guided, captured and combined using Maxim DL5 Pro. Post processed using PhotoShop CS2, Gradient XTerminator, StarShrink, Carboni's Astro Tools and NoiseWare.