Astro World Astro's Astrophotographers
Sunday, May 8, 2011
Coconut Oil As Butter Substitute In Baking?
This time Astro chosen as this week is a fantastic making one of the most famous globular clusters can be, even if conditions permit, the naked eye from the northern hemisphere. The globular cluster M13 (Messier ) was discovered in 1714 by English astronomer who noted Edmond_Halley " shown naked eye when the sky is clear and the moon absent." It is located in the constellation Hercules, and we can observe in all its splendor between spring and summer. This beautiful object is a distance of 25,000 light years and its diameter is about 150. For amateur astronomers
his observation is certainly a must day after day to see this beautiful cluster of stars that exploded with light and contrast of the ocular field. Its luminosity is of a magnitude of 5.8 which means it can be seen with binoculars or small telescopes initiation.
winning Astrophotography brings us Hartmut from Germany who made Bornemann decision in May 2008.
In this picture we can highlight its focus and depth of field that makes possible the vision of the stars in the core if it comes out overexposed, it is hard to do and gives you valuable work. Globular Cluster M13
Telescope: Takahashi TOA-150, field flattener FF67 Camera: SBIG ST-2000XM, CFW-8
Guide scope: Takahashi FS-60
Guide camera: SBIG ST-402ME
Mount Takahashi EM-400
Software: CCDSoft, own calibration and stacking, PhotoShop CS2
Hartmut Bornemann
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