the Birthplace of american astronomy

See through the oldest public telescope in the country.

Meet a Meteorite



Welcome to the


We are a fully functioning 19th century observatory used daily by the public and amateur astronomers, civic organizations, teachers and students, and history buffs.



A National Historic Landmark


Step back in time and space.

Explore the beautiful buildings and see through the large, historic telescopes which saw first light in 1845 and 1904.






The Moon takes a bite out of the Sun 

View this rare event with us
at the Ault Park Pavilion...
without going blind

October 23 from 5-7pm
(In the evening)

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History and Architecture


Two of Cincinnati's fabled seven hills are named because of us.  The science of meteorology started here.  And our main building, built in 1873, was designed by Cincinnati's premier architect.   

Learn more during our History Tours on the 2nd and 4th Sundays of the month from 1-4pm.  Next program is October 26.







Explore our massive collection of meteorites at the Observatory and touch a piece of outer space

November 1 from 7-10pm

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Meet a Meteorite

Join Us

Join, donate, and volunteer to make the "Birthplace of American Astronomy" a vibrant center for education and wonder

Public Events

See "What's Up" at the Observatory.  Each season has a new planet, star cluster, or nebula to explore

School Programs

Plan a field trip, schedule an outreach visit to your classroom, or gather the scouts for an evening at the Observatory