The Birthplace of American Astronomy

See through the oldest public telescope in the country.

Visiting Hours 175th Celebration ScopeOut 2018 Ireland Tour



Welcome to the


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



Visiting the Observatory


We are open Daytime Hours to see the historic buildings and telescopes, Monday-Friday from Noon-4pm with tours at 1pm, 2pm, and 3pm

And Visit Us in the Evening to view through the telescopes to see the Moon, stars, and planets every Thursday and Friday night at 8:30pm






November 8, 2018, 6-9pm

The Observatory is celebrating 175 years since the laying of our cornerstone! 
More info here








September 14 and 15

Two nights of telescopes and astronomy. Special dinner and lecture on Friday -  50+ telescopes on Saturday.

List of Events






May 1-9, 2019

Join Dean Regas on an astronomical tour of the Emerald Isle you'll never forget.  

More Info



Visiting Hours
175th Celebration
ScopeOut 2018
Ireland Tour

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