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Southern Cross: The most prominent constellation in the southern sky consists of four beautifully colored stars in a dense star field, only interrupted by one of the largest dark nebulae: The Coal Sack. A huge cloud of dust obstructs most of the light of the stars behind it, thus creating the dark structures, which can be seen in this deep exposure image.

Object Southern Cross
Category Constellations
Designation Southern Cross
Constellation Crux
Optics Samyang lens 135mm, 1:2@f/2.8
Mount Astro-Physics 900 GTO
Camera SBIG STL 11000M with internal CFW 5
Exposure 6 x 5min each RGB, Baader filterset. Maxim DL for image acquisition
Calibration Dark + Flat Frame
Guiding Unguided
Processing Maxim DL5, Photoshop. Colorcode RGB
Location-Date Somerset West, South Africa - 30 Apr 2016
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