SUNSET: 
0
Photographer:
Rod Pommier
Location of Photo:
Pommier Observatory, Portland, OR, USA
Date/Time of photo:
Dates: 2017-06-27 through 2017-06-28
Equipment:
Telescope/Mount: Celestron Compustar C14 with Starizona LF reducer/corrector (f/7.5) Camera: SBIG STL 11000M with Baader Planetarium L,R,G,B filters Adaptive Optics: SBIG AO-L at 8 Hz. Exposures: L:R:G:B=110:60:60:50 = 4 hours, 40 minutes total exposure.
Description:
M10 in the constellation of Ophiuchus has the honor of being one of the globular clusters in the Messier catalog that is nearest to Earth, lying only 14,600 light-years away. It is a Shapley-Sawyer class VII cluster, which means it has a densely populated but resolvable core that gives globular clusters the classic snowball of stars appearance.
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