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About this Image
The globular cluster NGC 5139 in Centaurus is the most massive star cluster with approx. 5 million suns.
It is situated approx. 16,000 light-years away. Most of the stars in this image belong to this huge cluster.
TEC-140 APO refractor with TEC flattener at f/7
|Camera||SBIG STL-11000M at -25C, internal filter wheel|
|Date||May 23, 2006.|
|Sky Conditions||mag 6.5, high transparency, temperature 10 C,|
LRGB= 40:40:30:40 min (10-minute sub-exposures)
Image aquisition and calibration in Maxim DL 4.11;
Photoshop: curves, color balance;