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2007-08-31 Wayne Malkin

NGC6871

Cygnus

This is a wide field shot with my STL-11000 and Pentax 100 SDUF-II. At 400mm focal length, the field of view is 5 degrees wide and 3.4 degrees high.

The open cluster NGC6871 is about 2/3 over to the right, and 1/3 down from the top of the frame. Another open cluster, NGC6888, is centred and close to the bottom of the frame. At the bottm left you can faintly see the Crescent Nebula, though the exposure is too short to show this object well.

The green channel was out of focus, so it is artifically combined from the red and blue channels.

Total exposure is about an hour.


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