M81, M82 and the Integrated Flux Nebula

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Date: 25/26 May 2017
Location: Astrofarm, France
Exposure: 480 x 30sec at ISO 10000 (4 hours of data in total)
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 in PixInsight and stretched with Arcsinh Stretch
Comments: SQM readings were around 21.6
Further Comments: This image won the Stargazers Lounge competition for 30second exposures. SGL Imaging Challenge Winners