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Barred spiral galaxy, M109 in Ursa Major

Various other galaxies are also visible.

 

A tricky one to process, this is the best I've got so far. Nice spiral structure, though!

 

Total of 3 hours & 25 min exposure. Subs taken during 4 imaging sessions in December and February. ISO 1600, f10. Manually, off-axis guided.

Sub-exposures registered and stacked using DeepSkyStacker; processed using Canon Photo Professional and Paint Shop Pro (curves & colour-balance)

Celestron C8 telescope & unmodded EOS 40D.

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Uploaded on February 20, 2012