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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.
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.

m81, 21. April 2004. C8, F/2.7. Vesta 690K SC3 (using Meade 0.33x focal reducer), Atik IRB filter