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Saturday, October 11, 2008
Last night I shot S-II (Sulfur) channel for this nebula.
I previously shot H-alpha (Hydrogen) and O-II (Oxygen), you can see the image,
if you scroll few posts down.
This is a narrowband color composition with mentioned three pands.
Sulfur=Red, Hydrogen=Green and Oxygen=Blue
Imaging data: Camera,
- Filters, Baader 7nm H-alpha, Baader 8,5nm O-III and Baader 8nm S-II
- Optics, Tokina AT-X 300mm @ f2.8
- Exposures, 7X 1200s H-alpha, 8 X 1200 O-III and 3X1200s S-II + flats and bias
Guiding, LX200 GPS 12" + PHD-guiding and Lodestar