05/26/2026
Did you know Cincinnati is known as the “Birthplace of American Astronomy”?
The in Mt. Lookout is home to one of the oldest working telescopes in the world.
Its story began in 1842, when professor Ormsby MacKnight Mitchel went door to door asking Cincinnatians to donate $25 (about a month’s salary at the time) to help build an observatory. After raising nearly $7,500, he traveled to Munich, Bavaria and purchased a beautiful 11-inch Merz and Mahler refractor, originally built for a Russian czar. The telescope was shipped to New Orleans where it made its way up the Mississippi and Ohio Rivers to the banks of Cincinnati.
The original observatory was located in Mount Adams, where the Monastery Event Center stands today. Thousands gathered for its 1843 dedication, including President John Quincy Adams, who coined the Observatory's nickname “Lighthouse of the Sky.”
First used in 1845, the telescope was the largest in the Western Hemisphere and third largest in the world. In 1873, the Observatory relocated to escape the city’s pollution, giving Mt. Lookout its name. A new Greek Revival building designed by Samuel Hannaford was built there. In 1904, the Observatory would add a 16-inch Alvan Clark & Sons refractor from Cambridge, Massachusetts, along with a second building on the campus to house it.
The Cincinnati Observatory was revolutionary, directly influencing the publishing of the nation’s first astronomy journal to helping inspire the first weather forecasts and the creation of the National Weather Service. Today, it remains a fully functioning observatory where visitors can still look through the same historic telescopes more than 180 years later. Huge shoutout to Kelsey from the Observatory for the awesome tour!
