M81 in Ursa Major


Scope: C8 f/3.3 Location: Dos Picos Park, Ramona, CA 1/23/2004 Camera: ToUcam SC3

Exposure: 12 x 18 sec, 12 x 60 sec Luminance Exposure with IR Block. 10 x 40 sec RGB Exposures.

Processing: Images were captured in K3CCDTools. Aligned/stacked in Registax and saved as FITS.. Luminance and Color master frames were co-registered in Astroart. Luminance and Color FITS were combined in Photoshop with Luminance Layering. Star bloating was reduced with the 18 sec Luminance exposure. No ears - the exposure was made with RAW mode Color balancing and final touches in Photoshop.

This was a guided exposure. The image does not separate well the double star in the right part of the image. (North is to the left). I think this image shows some detail on the galaxy arms  reasonably well. Horizontal FOV is 25'


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