M13 Globular Cluster



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Date: 25 April 2020
Location: High Halden, Kent
Exposure: 120 x 30sec at ISO 10000
Telescope: Celestron C11 with Starizona 0.72x LF SCT corrector
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: This is just over an hour of data taken before dawn