Observatories in Arizona

12 observatories

• 1Score 61.0 out of 10061.0

  

  Observatory

  Lowell Observatory

  The Flagstaff observatory where Pluto was discovered in 1930, founded in 1894 and still open for public observing.
• 2Score 55.3 out of 10055.3

  

  Observatory

  Large Binocular Telescope

  An optical telescope on Mount Graham whose paired 8.4-metre mirrors give it the light-gathering power of an 11.8-metre instrument.
• 3Score 53.0 out of 10053.0

  

  Observatory

  Kitt Peak National Observatory

  An observatory west of Tucson holding more than twenty optical telescopes, one of the largest such gatherings in the northern hemisphere.
• 4Score 48.6 out of 10048.6

  

  Observatory

  Mount Graham International Observatory

  A University of Arizona observatory in the Pinaleño Mountains, site of the Large Binocular Telescope and contested since construction began in 1989.
• 5Score 41.3 out of 10041.3

  

  Observatory

  Fred Lawrence Whipple Observatory

  The Smithsonian Astrophysical Observatory's largest field station, on the summit of Mount Hopkins near Amado.
• 6Score 40.9 out of 10040.9

  

  Observatory

  VERITAS

  A ground-based gamma-ray observatory of four 12-metre reflectors at the Fred Lawrence Whipple Observatory, completed in 2007.
• 7Score 40.8 out of 10040.8

  

  Observatory

  Mount Lemmon Observatory

  A University of Arizona observatory on Mount Lemmon, 28 kilometres north-east of Tucson in the Coronado National Forest.
• 8Score 40.0 out of 10040.0

  

  Observatory

  United States Naval Observatory Flagstaff Station

  The national dark-sky observing facility of the United States Naval Observatory, near Flagstaff, and joint manager of the Celestial Reference Frame.
• 9Score 38.3 out of 10038.3

  

  Observatory

  McMath–Pierce Solar Telescope

  A 1.6-metre solar telescope of 1962 at Kitt Peak, once the largest solar telescope and the largest unobstructed-aperture optical telescope in the world.
• 10Score 38.3 out of 10038.3

  

  Observatory

  Nicholas U. Mayall Telescope

  A four-metre reflector at Kitt Peak, second-largest in the world at first light in 1973 and now host to the Dark Energy Spectroscopic Instrument.
• 11Score 37.6 out of 10037.6

  

  Observatory

  Lowell Discovery Telescope

  A 4.3-metre telescope operated by Lowell Observatory near Happy Jack, the fifth largest optical telescope in the continental United States.
• 12Score 37.5 out of 10037.5

  

  Observatory

  Submillimeter Telescope

  A 10-metre submillimetre radio telescope on Mount Graham, completed in 1993 and part of the Mount Graham International Observatory.