M52, Bubble Nebula and Lobster Claw



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Date: 8 September 2018
Location: High Halden, Kent
Exposure: 240 x 30sec at ISO 10000
Telescope: Takahashi Epsilon 180ED on Skywatcher EQ6 mount
Camera: H-alpha modified Sony A7S
Guiding: Nikkor 300mm lens with QHY5 camera.
Filters: IR/UV cut filter
Processing: Stacked using Bayer Drizzle, Background subtraction using ABE (linear function), ArcsinhStretch with factor 40 and then some saturation in Photoshop
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