The Birthplace of American Astronomy

See through the oldest public telescope in the country.

Mission & Vision Planets Collide Pluto at Last! "Wurst" Date Night Ever



Welcome to the


We are a fully functioning 19th century observatory used daily by the public and amateur astronomers, civic organizations, teachers and students, scouts and history buffs. We offer public astronomy programs and stargazing every Thursday & Friday evening and dozens of special events throughout the year.



A National Historic Landmark


When you explore the beautiful buildings and see through the large, historic telescopes, you'll step back in time and space.  

Learn more about our mission and watch our New Video




Venus and Jupiter Meet


Monday, Tuesday, Wednesday
June 29, 30, July 1, 8:30-10pm

You've probably seen them in the evening: two suspiciously bright lights in the western sky.
What are they? Planes? UFOs?

Read More




Pluto at Last!


Tuesday July 14 from 8-10pm

We’ve been waiting to meet Pluto since it was discovered more than 85 years ago. On July 14 we’ll get our first pictures of this tiny world almost 3 billion miles away.

More information






"Wurst" Date Night Ever



Thursday July 23 from 8:30pm-11pm

This date night has it all: Food and drink, followed by stars and planets, followed by more food and drink.
You'll start your evening at the Wurst Bar in Mount Lookout Square.

Take a Look


Mission & Vision
Planets Collide
Pluto at Last!

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