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Saturday, June 5, 2010

Tucanae 47, a Globular cluster

LRGB image of Tucanae, NGC 104, globular cluster in constellation Tucana.
16700 light years away from Earth and 120 light years across.

Less compressed images here: 
Image field is about 30' x 30', half a degrees.
A new project, from Northern galactic remote telescope in Australia.

100% crop from the core of Tukanae 47.

The telescope and technical information:

16" RCOS ja Apogee U9000 camera. 
LRGB combo.
Luminance 12x300s and 8x150s, Dark and Flat calibrated.
Red  5x300s, Dark calibrated 
Green 5x300s, Dark calibrated 
Blue 5x300s, Dark calibrated 
Raw data is shared with Petri Kehusmaa and J-P Metsavainio

Processing workflow:
Image acquisition, MaxiDL
Stacked and calibrated in CCDStack.
Deconvolution with a CCDSharp, 10 iterations
Levels, curves and color combine in PS CS3.

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