Keck I and II observatories on Mauna Kea, Hawaii

Keck I and II observatories on Mauna Kea, Hawaii

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Credit: DAVID NUNUK/SCIENCE PHOTO LIBRARY

Caption: Keck observatories. Domes of the Keck I (at right) and Keck II (far left) optical telescopes at sunrise at Mauna Kea in Hawaii, USA. Other obser- vatories are seen in the background including the NASA Infrared Facility (lower centre left) and the Canada-France-Hawaii Observatory (lower centre). Each Keck dome contains a telescope with a 10 metre diameter mirror to focus light. These two telescopes can be used to observe the same object and can have their signals combined by interferometry to obtain a more accurate image. In 1997 the Keck telescopes are the largest optical telescopes in the world.

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Keywords: astronomy, astrophysics, canada-france-hawaii telescope, hawai'i, hawaii, i and ii, keck, keck i and ii, keck telescope, mauna kea, nasa ir facility, observatory, optical, optical astronomy, optical telescope, sunrise, telescope, usa

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