Mike Crowle
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8 December 2007
Comet Holmes & star cluster NGC1245
The star cluster is faintly visible below the comet.
Canon EOS 20D
,
Carl Zeiss Jena 135mm f/3.5 Sonnar M42
Camera 'piggybacked' on a Celestron C8 telescope. 5.5 minute exposure at f3.5, ISO 800. Lumicon Deep Sky Filter fitted to lens.
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