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Globular Cluster M22: M22 in the constellation of Sagittarius is one of the brighest Globular Clusters and can be observed even with the naked eye. It´s distance is about 10000 LY and it has a diameter of a 100 LY.

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



Object Globular Cluster M22
Category IAS Hakos, Namibia
Designation M 022
Constellation Sagittarius
Optics Keller 20 inch Cassegrain f/9 in corrected secondary focus
Mount Liebscher GEM
Camera SBIG STL-11000M with internal CFW 5
Exposure 3 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 - 6 Apr 2011
 
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