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Exploring the Solar System Open House

Join us for our next open house on Thursday, July 11 from 7:30pm – 9:30pm! We’ll have observing outside if the weather is clear, family activities, presentations from special guest astronomer and author Dean Regas, ice cream for purchase by Sweet Tooth of Lake Geneva, and more for your family to enjoy. 

The open house will take place rain or shine. This does not include use of telescopes within the building. Reservations are required, and tickets can be purchased on our ticketing website. Tickets for this event cost $5 per child and $10 for adults and are available online only. There will not be parking onsite at the Observatory. Ticket holders must park at Williams Bay School and board an accessible trolley that will run a continuous shuttle between the school and observatory during the Open House. Scroll to see the full schedule of events!

To reserve tickets, click here to go to our ticketing website!

 

Exploring the solar system open house with special guest Dean Regas

July 11 2024
7:30 P M to 9:30 P M
Rain or shine!

No parking on site
Free trolley rides from Williams Bay School

Ticketed entry only, available at yerkes observatory dot orgExploring the Solar System Open House
Thursday, July 11, 2024 7:30pm - 9:30pm


Trolley schedule: 
Leaving Williams Bay High School 
every 15 minutes starting at 7:15pm

Doors open: 7:30pm
Rain or shine!

Presentation Showtimes: 
The New and Improved Solar System with Dean Regas
Explore the planets, asteroids, moons, dwarf planets, comets and more as Astronomer and Author Dean Regas shares the latest pictures and info about our solar system.
8pm - 8:30pm and 8:45pm - 9:15pm

Other activities: 7:30pm - 9:30pm
Telescope observing on the lawn
Ice cream from Sweet Tooth of Lake Geneva
Family activities in the Drake Family Library
Demonstrations and information tables
Meet & Greet Yerkes Board Members
Scavenger hunt with prizes
Gift shop


Doors close: 9:30pm

Final trolley back to WBHS: 9:45pm

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Exploring the Night Sky Tour Dates for Fall 2024