Messier Marathon Open House and Schedule of Events
Join us for Yerkes Messier Marathon Open House! We’ll have telescopes on the South Lawn, presentations, food, and educational activities for you and your family. March 9th from 6:00pm-8:00pm, rain or shine. This does not include the use of the telescopes in the building. Reservations are required.
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. Only ticket holders will be admitted on the trolleys.
To reserve tickets, click here to go to our ticketing website!
Messier Marathon Schedule of Events
Saturday, March 9, 2024 6pm – 8pm
Leaving Williams Bay High School every 15 minutes starting at 6pm
Doors open: 6pm
[Rain or shine]
In the Drake Family Library
6:15pm – 6:30pm ; 7:15pm – 7:30pm
Yerkes’ storied past and bright future
6:45pm – 7pm ; 7:45pm – 8pm
All about Messier
Other activities: 6pm – 8pm
Telescope observing on the lawn (weather permitting)
Family activities in the Programs room
Demonstrations and information tables
Food & Drink from Green Grocer
Doors close: 8pm
Final trolley back to WBHS: 8:15pm