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M81- Spiral Galaxy in Ursa Major

by Bob and Janice Fera

Planewave CDK17 17" f/6.8 Cassegrain

Apogee U16M CCD Camera

Astrodon Filters

LRGB Composite

L:400 R:120 G:120 B:120 minutes

Sub Exposures: L:20x20m R:6x20m G:6x20m B:6x20m
All exposures unbinned

Image acquired with CCDAutopilot

Processed in CCDstack and Adobe Photoshop

Taken February 5-6, 2016 from Sierra Remote Observatories, CA


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