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Horsehead and Flame Nebulas Narrowband-Ha channel
Ha only Ha=46x10min, total 7hr,50min
The image is taken through the Ha filter image which is the dominant source of light in this image. It is unsharpened but has been nonlinearly stretched to bring out the details in the darker areas. The narrowband filters are nice here since they eliminate the overly bright star above the Flame nebula.
Taken with a Takahashi FS152, FLI Pl16803 and Astrodon 3nm filters.
Comment
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Comment by Michael Adler on November 29, 2012 at 10:24am
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Thanks, I posted it because on the FLI yahoo site their was a discussion of over sharpening this image. I put this unsharpened and only stretched to bring out the darker details. When compared with the color versions one can see that the detail in the unsharpened color image is very similiar to the Ha unsharpened image, showing that the detail was not as a result of sharpening but present in the raw data.
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