Sunday, September 20, 2009
NGC 6888, deconvolution test
A fellow astro imager, Neil Fleming, in Yahoo group "astro_narrowband"
give me an idea about using more deconvolution algorithm to this image.
Thanks a lot Neil!
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After testing several softwares, I found CCDSharp giving me best resul in this case.
( CCDSharp is a freeware from Sbig )
33 iterations of Lucy-Richardson deconvolution.
The Stars came out just fine, so no separate processing for them.
Final result was way more better than I was expecting!
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You can compare those images to a previous ones, HERE in a HST-plalette and HERE in a Natural colors.
Imaging details can be found behind the links too.
Hydroge alpha channel alone
Saturday, September 19, 2009
NGC 6888 as a Stereo Pair
A Parallel Vision version 
A Cross Vision version -
NOTE! This is a personal vision about forms and shapes, based on some known facts and artistic impression. Wieving instructions can be found from a Right hand side menu.
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Original 2D-image and details, HERE
Friday, September 18, 2009
NGC 6888 in HST-palette
Last night I got S-II (ionized Sulfur) for the NGC 6888, the Crescent Nebula.
Now it was possible to compose a HST version (Hubble Space Telescope palette).
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Camera QHY9,
Optics Meade LX200 GPS 12" forced to @ f4.65
Guiding with SXV-AO active optics unit 11Hz
Filters
Baader H-alpha 7nm, 4.5h 20min subs
Baader O-III 8,5nm 2h 40min 20min subs binned 2x2
S-II 1h 5 min subs binned 3x3
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Note. a special technique of mine is used to balance weaker channels with Hydrogen alpha.
Information about that tech. can be found HERE
Thursday, September 17, 2009
NGC 6888 in H-alpha and O-III light.
This was hard to process...
I have problems to have images calibrated with Flats, Bias and Darks, so much extra work there to have images balanced.
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O-III, ionized Oxygen, really add forms to this image.
I will shoot S-II, even though there is much that in the Crescent itself.
I'll like to make this image to HST-palette as well.
- Camera QHY9, Optics Meade LX200 GPS 12" forced to @ f4.65 Guiding with SXV-AO active optics unit 11Hz Filter Baader H-alpha 7nm
H-alpha 4.5h 20min subs
O-III 2h 40min 20 min subs
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