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Wednesday, September 8, 2010

Galaxy NGC 613

NGC 613, barred spiral galaxy in southern constellation Sculptor. 
Distance is about 65 million light years. Image is a broadband LRGB-composition.
This target has a smallish angular diameter, about 5,5' x 4,2'. I might try this one again with a better seeing, at this time seeing was about 3,5" FWHM.

The telescope:

Close up

Technical details:

16" RCOS ja Apogee U9000 camera. 
LRGB combo.
9x600s for the Luminance and 1x600s / RGB-channel . Dark and Flat calibrated.
Raw data is shared by Petri Kehusmaa and J-P Metsavainio

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

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