Welcome to the MMT Observatory

Latest News

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  • Week of Dec. 15 - Work on Mt. Hopkins Rd.

    There will be no road work on Dec. 17-18 due to weather conditions. If weather permits, work around km 9.4 might resume on Dec. 19. Plan for restrictions to be in place with road openings at 8:00-8:30am, noon-12:30, and after 4:00pm. If you need through at other times, one hour advance notice by radio may facilitate crossing. Call 520-879-4422 for recorded daily updates.

  • Updated Observing Schedule

    An updated observing schedule for January - April 2015 has been posted along with Program Titles.

  • Smithsonian Astronomy Lecture Series

    This popular lecture series will start up again in January and run through March. The lectures are free and open to the public. They are held at the Green Valley Recreation Center from 9:00am - 10:30am on Wednesdays. The dates for this year are January 14, January 21, February 11, March 18, and March 25. Check back here soon for a list of speakers and their topics!