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Open Cluster NGC 6231: This bright Open Cluster is located close to the star Zeta Scorpii and is only about three million years old. It is a fabulous object to observe even through binoculars. It is in a distance of 6000 LY.

The image was taken at the IAS astronomical site at the Hakos farm in Namibia.

Object Open Cluster NGC 6231
Category IAS Hakos, Namibia
Designation NGC 6231
Constellation Scorpius
Optics Keller 20 inch Cassegrain f/9 in corrected secondary focus
Mount Liebscher GEM
Camera SBIG STL-11000M with internal CFW 5
Exposure 2 x 10min each Baader RGB filterset. Maxim DL for image acquisition
Calibration Dark Frame
Guiding StarlightXpress Lodestar on Schneider OAG, Maxim DL as Guiding Software
Processing Maxim DL5, CCD Stack, Photoshop. Color Code R,G,B
Location-Date IAS-Hakos, Namibia - 10 Apr 2011
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