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Lowell Observatory

  • 1400 W. Mars Hill Road Flagstaff, AZ 86001
    • Phone: (928) 774-3358
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Open your mind to awe and wonder under the famously dark skies of Flagstaff, Arizona, the world's first International Dark Sky City. Look up from anywhere in the city to see more stars than you can count. For the best views, head to Mars Hill and the grounds of 125-year-old Lowell Observatory. This is where Pluto was discovered in 1930, an event you can relive during one of the observatory's many guided tours. On clear nights, gaze at the moon, planets or deep-sky objects through the giant Clark refractor, built in 1896. On October 5, 2019, Lowell Observatory unveils the Giovale Open Deck Observatory, a unique public observing plaza with six advanced telescopes.

Interactive Stargazing Join Lowell Observatory educators at…
Jupiter at its Biggest and Brightest | Opposition of Jupiter 2020 | Interactive…
Cosmic Coffee, Cup No. 17 | The New Horizons Flyby of Pluto, 5 Years…
Perseid Meteor Shower at Lowell Observatory Every year in…