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November 2009 Astrophotography Contest Winner:
Soul Nebula by J-P Metsavainio


Hi All,

I add my lates image, a closeup of the Soul Nebula.
Image is a narrowband image but unlike usually, it's in natural colors.
Colors are mixed from NB channels by following method:
Red=H-a + 25%S-II Green = O-III and Blue is O-III + 15% H-a (to compensate H-beta)

Processing work flow:
Image acquisition, MaxiDL v5.07.
Stacked and calibrated in CCDStack.
Deconvolution with a CCDSharp, 30 iterations.
Levels, curves and color combine in PS CS3.

Telescope, Meade LX200 GPS 12" @ f4.65
Camera, QHY9
Guiding, SXV-AO @ 11Hz
Image Scale, 0,8 arcseconds/pixel

Exposures:
H-alpha 16x1200s Binned 1x1
O-III 3x600s, binned 3x3
S-II 9x600s, binned 3x3