M33 - The Triangulum Galaxy

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Date: 17 October 2009
Location: Blacklands Farm, West Sussex.
Exposure: 72 x 5 minutes
Telescope: Celestron C11 with F6.3 reducer on Skywatcher EQ6 mount.
Camera: Modified Canon EOS 350D
Guiding: Nikkor 300mm lens with x2 teleconverter & modified Toucam webcam.
Filters: IR/UV and CLS filters (to emphasize the H-alpha regions)
Processing: Stacked in IRIS and asinh range compression applied. 2x2 binned. Cropped.
Comments: Ambient temperature dropped from 9C to 2C during acquisition with frozen dew everywhere.