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M-15 (NGC-7078)

M-15 (NGC-7078)

M-15 (NGC-7078) is a bright, compact globular star cluster located in the constellation of Pegasus, just 4 degrees NW of Epsilon Pegasi (Enif). It was discovered by Maraldi in 1741 and Charles Messier added it to his catalog as number 15 in 1764. It lies 33,000 light years from Earth, is 130 light years in diameter and contains over 200,00 stars.
This image, acquired on September 30, 2016, is a 20 minute integration of 1 minute exposures through the Celestron C-11 at f/2, using the HyperStar III imaging system and the Starlight Express SXVR-H694C 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.

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