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Rosette to Cone Nebula: This panoramic view, spanning approx. 10x6 degree, shows the two well-known emission nebulae as part of a gigantic gas and molecular cloud. The predominantly red emission from the H-alpha spectral line of hydrogen marks it as a so called HII region with much star forming activity going on predominantly in the two focal regions Rosette (left)and Cone Nebula (right). The light of very bright young stars is also reflected and diffracted from emersed dust regions forming blueish reflection nebulae as can be seen at the base of Cone Nebula at the right hand side. The bright star in the center is 13 Monoceros with another very faint reflection nebula around it, IC 448

Please also have a look at the High-Res version to see more details.

The RGB part of the image was taken under the very clear sky of Sutherland close to the site of the South African Large Telescope (SALT).

I want to extend my sincere thanks to Jurg Wagener from Sutherland for providing me with one of his observation enclosures for setting up my equipment and his support during my stay. His every night starshows about the wonders of the Southern Sky are an unforgettable attraction for all Sutherland visitors. Find out more about Sutherland and its attractions here.

Object Rosette to Cone Nebula
Category Nebulae
Designation NGC 2244, NGC 2264
Constellation Monoceros
Optics Canon EF lens 200mm 1:2.8 @ f/3.5
Mount Takahashi EM-11, Astro-Physics GTO 900 (H-alpha)
Camera SBIG STL 11000M with internal CFW 5
Exposure 5 x 20min Baader H-alpha filter, 9 x 5min each Astrodon RGB filterset. Maxim DL for image acquisition
Calibration Dark + Flat Frame
Guiding Selfguiding
Processing Maxim DL5,Photoshop. Color Code L:H-alpha,R:H-alpha/R,G,B
Location-Date Sutherland, South Africa - 11 Feb 2010, Somerset West - 5 Jan 2010
Remark The dense star background was attenuated to better display the nebular structures
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