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 NGC6520 Area 
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About:
Did you ever have a day when it felt like a dark cloud was following you around? For the open cluster of stars NGC 6520, every day is like this. On the left of the above picture are many of NGC 6520's bright blue stars. They formed only millions of years ago - much more recently than our ancient Sun which formed billions of years ago. On the right is an absorption nebula, molecular cloud Barnard 86, from which the stars of NGC 6520 surely formed. This nebula contains much opaque dust that blocks light from the many stars that would have been visible in the background. Surrounding NGC 6520 is part of the tremendously dense starscape in the bulge of our Milky Way Galaxy, the extended halo of stars that surrounds the center of our Galaxy. NGC 6520 spans about 10 light years and lies about 5500 light years away toward the direction of Sagittarius [Text adapted from APOD]



NGC6520 / B86
IC4673
NGC6540
Terzan9

Optics: Takahashi FSQ-106EDXIII F/5 530mm. - APO Refractor
Mount: AP Mach1 GTO
Camera: Moravian G3-16200
Filters: Optolong RGB 2"
Guiding Systems: SX Lodestar
Dates/Times: 30 July 2016
Location: Gias Bandia (Cuneo) - Italy
Exposure Details: R:G:B => 18:18:30 = > (6x3):(6x3):(10x3) All Bin1 [num x minutes]
Cooling Details: -25 C
Acquisition: Maxim DL/CCD, Voyager
Processing: CCDStack2+, PS CS5
Mean FWHM: 1.98 / 2.37
SQM-L: 21.89