M81

March 10, 2007

This is a combination of 87 images, each of 60 seconds The images were taken with a Alta-U9 attached to an RCX400 12" F/7.19 telescope. Each of the images was corrected with a dark frame and a flat field.

A DSI Pro was atttached to an ETX-90 for guiding.




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Last updated: March 11, 2007