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A distant picture of the setting sun
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A distant picture of the setting sun

May 13, 2010
A distant picture of the setting sun backlighting the Kitt Peak National Observatory (KPNO) telescope domes. At left is the distinctive triangular shadow of the National Solar Observatory's McMath-Pierce Solar Facility. At far right is the 4-meter Mayall telescope dome, an 18-story building.

More about this Image KPNO is located on Kitt Peak, a 2,089-meter mountain 90 kilometers southwest of Tucson, Arizona. KPNO includes the 3.5-meter WIYN telescope, the 4-meter Mayall telescope and a 2.1-meter general-purpose reflector. Numerous other telescopes operated by universities or private consortia are also tenants on Kitt Peak. A full complement of state-of-the-art spectroscopic and imaging instrumentation is available for use on these telescopes. Kitt Peak is one of several observatories that make up the National Optical Astronomy Observatories (NOAO), a national center for research in ground-based optical and infrared astronomy, supported by National Science Foundation.


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