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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