Who knew we were so close to the Sun?! The Peoria area is known for many things and astrology typically isn’t one of them, but that’s about to change. You may be shocked to learn that the Peoria area is home to the Peoria Riverfront Museum’s Community Solar System, which is also the world’s most complete large-scale Solar System model. 

The scale factor of the model is 99,000,000 to one, and it covers 6,000 square miles of Central Illinois. The model not only includes the Sun and eight planets, but it also features five dwarf planets and a number of unnamed comets located around the globe. With planets that can be found throughout Peoria, spreading into Princeville, Pekin and beyond, the Community Solar System is the perfect opportunity to discover and explore Central Illinois. Grab your friends and family and get ready for a learning adventure that will put into perspective how large our solar system really is.

Planet Locations

Located on the Riverfront Museum’s Sun Plaza and the wall of the Dome Planetarium lobby, the Sun is the center of the solar system model. The earth is located just around a mile away at the Peoria riverfront on the Rock Island/Pimiteoui Trail in Constitution Park.


Also located along the Rock island/Pimiteoui Trail are Mercury, Venus and Mars. Mercury is near the Riverplex Playground, while Venus is near the volleyball courts and Mars can be found in Detweiller Marina Park Playground. Ceres is located at the Bonnie W. Noble Center for Park District Administration at Lakeview Park, and Jupiter is located in the Peoria International Airport lobby. 

solar system

Head out to Pekin Public Library to find Saturn, and if you travel to Troutman Park in Princeville you will find Uranus. Located just along the Rock Island Trail at the Wyoming Train Depot is Neptune, while Pluto can be found at Good’s Furniture in Kewanee.


You can stop there, but if you want to continue to discover the solar system heading out of our region, Haumea the dwarf planet is located at the Children’s Discovery Museum in Normal, Illinois. The dwarf planet Makemake is also beyond our region, located at the Discovery Depot in Galesburg, while Eris is located at Western Illinois University in Macomb.


Whether you plan on discovering all of the planets at once, or finding them over time, we promise all ages will enjoy adventuring throughout our region on the hunt for each planet. Exploring the solar system has never been so easy!  Learn more about each planet and its location on the Peoria Riverfront Museum’s Community Solar System page


Photo Reference: Peoria Riverfront Museum