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  • Lowell Observatory Flagstaff | Pluto Discovery, Stargazing Astronomy
    Visit Lowell Observatory in Flagstaff, Arizona—the historic site where Pluto was discovered Explore telescopes, exhibits, astronomy programs, and world-class stargazing beneath dark skies
  • Telescopes 101 - Lowell Observatory
    Join Lowell Observatory’s experts for a hands-on introduction to portable telescope operation under pristine dark skies at the Giovale Open Deck Observatory
  • Ingenuity and Legacy: Clyde Tombaugh’s Remarkable Telescope
    Clyde Tombaugh's homemade 9-inch telescope, built from farm machinery parts in 1927, led to his discovery of Pluto Learn how ingenuity and passion shaped astronomical history
  • Buy Tickets - Lowell Observatory
    Explore one of the newest and most advanced public telescopes at Lowell Observatory in Flagstaff, Arizona
  • Private Group Stargazing - Lowell Observatory
    Public Telescopes, Telescope Viewing, Talks Tours, Private Tour Public Telescopes, Telescope Viewing, Talks Tours, Private Tour Located in Included with {acf_ticket_requirement} Great For open today from 1 PM to 11 PM Hours of Operation 1400 W Mars Hill Rd, Flagstaff AZ Get Directions 928 774 3358
  • Plan Your Visit - Lowell Observatory
    Plan your trip to Lowell Observatory in Flagstaff, Arizona—home of Pluto’s discovery and some of the best public stargazing in the world Located at 7,250 feet on Mars Hill, our historic Arizona observatory offers year-round programs, hands-on exhibits, telescope viewing, and breathtaking dark sky experiences
  • Putnam Collection Center - Lowell Observatory
    The library and collections highlight the observatory’s history and feature selected items from the collections, including:
  • Rotunda Museum Open House - Lowell Observatory
    Built in 1916, the Slipher Building is one of Lowell Observatory’s most storied landmarks It’s home to the Rotunda Museum, where some of the most significant artifacts in American astronomy history are on display
  • Astrophotography Courses - Lowell Observatory
    Take the first step in your astrophotography journey! Using our 17-inch Planewave CDK Telescope and QSI 683 CCD camera, you will be taken through the process of imaging two different objects Then, we will teach you how to combine, stack, and edit the shots into full-color images using a program called Pixinsight
  • Lowell Observatory to Lead $3. 25-Million Project to Upgrade Telescope . . .
    Lowell Observatory receives $3 25 million Naval Research Laboratory grant to upgrade Navy Precision Optical Interferometer with advanced telescopes for high-resolution imaging of exoplanets and asteroids





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