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The observatories on Mauna Kea benefit from the high altitude of the site (about 14,000 feet or 4,200 meters), resulting in a clearer and dryer atmosphere, a darker sky, more clear nights per year and most importantly, sharper images, thanks to the low turbulence of the atmosphere at the summit.
Credit line: "Canada-France-Hawaii Telescope / 2004"
Copyright © 2004 Canada-France-Hawaii Telescope Corporation