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Treworgy Planetarium

Current Planetarium Show

Admission to Treworgy Planetarium shows requires Museum admission.

Winter Stars and the Mariner at 11 a.m. and 2 p.m.
Star of Bethlehem at 3 p.m.
Admission $5, Members $3 (ages 3 and younger are free)

Winter Stars and the Mariner
Discover the natural beauty of the night sky as seen from Mystic, Connecticut. Prepare yourself for some stargazing in your own backyard by learning to use the Big Dipper to find Polaris, the North Star. Once you’ve got your bearings, we can locate some of the major constellations and shapes in the early winter evening sky, including Ursa Major, the Great Square of Pegasus, and Orion the Hunter. We’ll also explore the visible planets of the season, as well as examine our closest celestial neighbor – the Moon! Finally, we’ll provide a brief overview of how sailors would navigate the seas guided by the stars. Celestial navigation is a complex subject, but some of the concepts can be best explained under the stars!

Star of Bethlehem
Join us for our special holiday program to explore the famous Star of Bethlehem, and what this phenomenon might have been. We will merge science, mythology, religious traditions and music, before ultimately inviting you to decide for yourself what you believe.

Stars to Guide the Way

Since 1960, the Treworgy Planetarium at Mystic Seaport Museum has been a center for science education, inspiring visitors to draw connections between our maritime history and the world around us. When we look up at the sky, we see the very same stars that guided sailors long ago, as they developed their navigational tools and instruments. Over time, we have come a long way, from the compass and sextant to the GPS units that many of our smartphones have. In order to truly appreciate the technological luxuries we enjoy today, it is important now more than ever to preserve the traditions of the past. 

Inside the Planetarium

Your family can participate in all of our shows at the Treworgy Planetarium, each one a live program delivered by a dynamic member of the Planetarium staff. Come see the sun, moon, planets, and stars like you’ve never seen them before! You will be immersed in a sea of stars, and the constellations will guide us on an unforgettable journey through the galaxy.

What’s in a Name?

If you’re wondering how our name is pronounced, think “TRUE-urr-gee.” Originally named the “Seaport Planetarium,” the Planetarium was re-named in 2009 in memory of Don Treworgy. Don worked at the Planetarium for 48 years, including 44 years as its Director, and was beloved by the Museum’s staff, volunteers, and visitors. The current staff is honored to work at a Planetarium that bears Don’s name, and his memory inspires us to continue the mission of education in the fields of Astronomy, Navigation, and Maritime History.