Imagers capture deep-sky targets
See all the entries of the 2009 Astroimaging Contest in the Deep-sky category, as well as the grand prize winner.
 GRAND PRIZE WINNER: To create this image, astrophotographer Tony Hallas made 10 vertical panels through a 14.5-inch telescope and nine horizontal “background” panels through a 6-inch Stellarvue telescope. Each vertical panel combined seven 25-minute exposures through L, R, G, and B filters; the horizontal panels combined five or six 20-minute exposures through L, R, G, and B filters. The total exposure time thus equaled approximately 19 hours, and the entire project (including image processing) took 4 months. (14.5-inch RC Optical Systems Classical Cassegrain Carbon Tube Telescope at f/8 paired with a Santa Barbara Instrument Group [SBIG] STL-11000 CCD camera, 6-inch Stellarvue refractor at f/7.9 with an SBIG ST-10E CCD camera, Astrodon filters, Astro-Physics 1200GTO German equatorial mount)
Photo by Tony Hallas |
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