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 Supergiant Star Gamma Cygni - Central Cygnus 
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Supergiant star Gamma Cygni lies at the center of the Northern Cross, famous asterism in the constellation Cygnus the Swan. Known by the proper name Sadr, the bright star also lies at the center of this skyscape, featuring a complex of stars, dust clouds, and glowing nebulae along the plane of our Milky Way galaxy. The field of view spans over 5 degrees (eight Full Moons) on the sky and includes emission nebula IC 1318 and open star cluster NGC 6910. Above of Gamma Cyg and shaped like two glowing cosmic wings divided by a long dark dust lane, IC 1318's popular name is understandably the Butterfly Nebula. Right of Gamma Cyg, are the young, still tightly grouped stars of NGC 6910. Some distance estimates for Gamma Cyg place it at around 1,800 light-years while estimates for IC 1318 and NGC 6910 range from 2,000 to 5,000 light-years. [Text adapted from APOD - A] [Text adapted from APOD - B]

Pubblications "Flickr" Explore - August 30, 2016
Optics: Takahashi FSQ-106EDXIII F/3.6 383mm. - APO Refractor
Mount: AP Mach1 GTO
Camera: Moravian G3-16200
Filters: Optolong LRGB 2"
Guiding Systems: SX Lodestar
Dates/Times: 07 August 2016
Location: Col Basset - Sestriere (Turin) - Italy
Exposure Details: R:G:B => 50:80:75 = > (10x5):(16x5):(15x5) All Bin1 [num x minutes]
Cooling Details: -25 °C
Acquisition: Maxim DL/CCD, Voyager
Processing: CCDStack2+, PS CS5
Mean FWHM: 1.12 / 1.89
SQM-L: 21.54