Gamma Cygni (γ Cyg, γ Cygni) is the Bayer designation for a star in the northern constellation Cygnus, forming the intersection of an asterism of five stars called the Northern Cross.

（quote from Wikipedia）

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Date and Place 2016-07-06 Tsuru, Yamanashi
Scope BORG55FL + 7880reducer
(FL=200mm, F3.6)
Mount Skywatcher EQ8
Camera Atik383L+
-15[deg-c]
Auto guiding Off-axis Superstar + GPUSB
Filter Astrodon Tru-balance Gen.2 LRGB Filter 36[mm] Unmounted
Exposure L : 40x 180[s]
R : 6x 300[s], G : 6x 300[s], B : 6x 300[s]
Total : 260[min]
Software Astroart6 with SHS Version 4.0 beta 4.1
PHD Guiding 2.6.2
Pixinsight
Photoshop CC

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