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Messier 42


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About this observation
Mike Scarisbrick
Time of observation
24/12/2014 - 20:30
Messier 42
Observing location
Cambridgeshire, UK
SkyWatcher 200 mm Newtonian
HEQ5 mount.
Canon EOS 500D
Multiple exposures from 2.5 seconds to 75 seconds
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Frames at individual exposure settings were stacked using Deep Sky Stacker, and then combined using a merging program of my own design. The central region is a combination of 2.5 second exposures, then moving from 10 second and 30 second exposures until the outermost region, which is just a single (sadly) 75 second exposure. Not a bad way to spend Christmas eve night and Christmas morning, I was quite pleased with how the detail is maintained from the outer regions to the Trapezium in the centre.

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