M51 Whirlpool Nebula



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Date: 19 April 2018
Location: High Halden, Kent
Exposure: 240 x 30sec at ISO 10000
Telescope: Celestron C11 with 0.7x Starizona LF corrector on Skywatcher EQ6 mount
Camera: H-alpha modified Sony A7S
Guiding: Nikkor 300mm lens with QHY5 camera.
Filters: IR/UV cut filter
Processing: Bayer drizzle integration in PixInsight and stretched with Arcsinh Stretch
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