Another result from the night of 28 Sep 13...this is the Crescent Nebula. The 3nm Ha filter is picking up dusty regions that were created by Hydrogen. The mono-colored result I am including shows just what the Ha filter alone picked up. The color version includes Red, Green, and Blue filter data. For the final result, I used the Ha as the Luminance, and also combined the Ha data with the Red filter data for the Red channel, and combined this result with the Green and Blue channel data. Exposure details (as well as full-size result) for this can be seen here: http://jeffjastro.com/dso/NGC6888_28Sep13.htm
Here are the two results:
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| Ha_HaRGB |
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| Ha-only |
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