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47 Tucanae: This exposure taken with a Keller 20" Cassegrain shows in high resolution this phantastic Globular Cluster. Several million suns shine in an astronomically small space of only 120 LY across, bound by their gravitation. NGC 104, as it is also called, is in a distance of about 12000 LY.

Please see also the Hi-Res version for closer inspection.

The image was taken at the observatory of IAS at Hakos Farm in Namibia.

This image has been selected "Astronomy Picture of the Day"

Object 47 Tucanae-20 inch
Category IAS Hakos, Namibia
Designation NGC 0104
Constellation Tucana
Optics Keller 20 inch Cassegrain f/3 in corrected primary focus
Mount Liebscher GEM
Camera SBIG STL-11000M with internal CFW 5
Exposure 3 x 5min each Baader LRGB filterset.1min each RGB for center. Maxim DL for image acquisition
Calibration Dark + Flat Frame
Guiding Selfguiding
Processing Maxim DL5, CCDStack, Photoshop. Color Code LRGB
Location-Date IAS-Hakos, Namibia - 3 Dec 2010
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