Yerkes Observatory: Messier Marathon Open House
- Presented By:
- Yerkes Observatory
- Dates:
- March 13, 2026
- Location:
- Yerkes Observatory
- Address:
- 373 W. Geneva Street, Williams Bay, WI 53191
- Time:
- 8:00 PM to 10:00 PM
- Price:
- $5 per child | $10 for adults
- Email:
- info@yerkesobservatory.org
-
Details
Join us for our yearly Messier Marathon open house!
- Friday, March 13th, from 8-10pm
We’re thrilled to be partnering with the Milwaukee Astronomical Society, who will provide an educational presentation about Messier objects and marathons, and observing outside if clear. We’ll also have exciting family activities, a virtual reality exploration of gravity, 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.
The main change is related to parking: instead of trolleys transporting guests to and from Williams Bay School, guests will park on-site at the observatory. This also means fewer tickets will be available for each open house, though we are planning to host several more open houses throughout 2026.- Reservations are required.
- Tickets for this event cost $5 per child and $10 for adults and are available online only.
- Tickets available HERE