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Messier Catalog - M81
Constellation: Ursa Major
08. January 2007. C8, Celestron 0.6x focal reducer. IRB filter, Artemis 285.
01. February 2006. C8, Meade 0.33x focal reducer. IRB filter, Artemis 285.
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m81, 01. February 2006.
C8, Meade 0.33x focal reducer. IRB filter, Artemis 285.
7x480s Exposures.
The big image above is the same as the one at left.
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m81, 21. April 2004.
C8, F/2.7. Vesta 690K SC3 (using Meade 0.33x focal reducer), Atik IRB filter
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