Sagan Planet Walk

The Sciencenter's Sagan Planet Walk is a walkable scale model of the Solar System, located in Ithaca, New York.

In 2012, the model was expanded 7,630 kilometers (4,740 mi) to include a representation of Alpha Centauri, the Sun's closest neighboring star, at the ʻImiloa Astronomy Center at the University of Hawaii.

All of the original planet locations were chosen not only for accuracy to scale but also to highlight local landmarks and public spaces within Ithaca.

However, since the original installation of the Planet Walk the public library has moved to a new location, leaving Saturn no longer attached to a local landmark.

All the subsequent obelisks in the Solar System model have Sun-sized glass windows containing their respective planets for the sake of comparison.

[6] The Jupiter Obelisk sits at the corner of Seneca and Cayuga streets, outside the downtown Dewitt Mall, and not far from the famed Moosewood Restaurant.

Visitors continue northward along Cayuga street from Saturn, reaching the obelisk for Uranus just across Cascadilla Creek at the entrance to Thompson Park.

From Uranus, visitors follow Willow Avenue northwest and cross the Carl Sagan bridge at Adams street to reach the Neptune Obelisk.