Rosette Nebula  NGC 2244

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2009 January 23rd  from Dengie Marshes, Essex, UK
 Canon 20Da DSLR  camera with Canon 200mm telephoto lens at f 4.
Tracking on an Astrotrac mount.
39 mins total exposure 13 no x 3 minute exposures stacked using Deep Sky Stacker
800 ISO and IDAS filter mounted over lens front

The night was very cold with occasional interference from high cloud.

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