The Constellation of Cygnus



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Date: 15 July 2015
Location: Riberac, Dordogne, France
Exposure: 120 x 30sec
Lens: Nikon 50mm at F8
Camera: H-alpha modified Sony A7S on iOptron SkyTracker mount
Guiding: None
Filters: IR/UV cut filter
Processing: Stacked in PixInsight and stretched with Arcsinh Stretch
Comments: The green diagonal splodge at the lower left was caused by an IR leak post-modification. I later fixed it.