Ptolemaic Solar System    Model #SOL-300

Ptolemaic model demonstrates how the solar system was understood in early times. Based on the Ptolemaic (geocentric) system, it shows the motions of the Sun and nearest planets, which are moved by hand in epicycles. Ptolemy developed this system to explain a universe with the Earth at its center - an idea now known to be incorrect, but widely accepted for centuries.

It was not until the 16th century that Nicolaus Copernicus introduced the heliocentric theory, placing the Sun at the center of the solar system. The Copernican Solar System model pairs perfectly with the Ptolemaic model, helping students understand the evolution of astronomical theories.

Each Ptolemaic model includes the instruction book “Worlds in Motion” and weighs 5 lbs.

For over 90 years, Trippensee portable desktop planetariums have provided hands-on, visual demonstrations of the solar system in motion, making them ideal for classrooms, libraries, museums or home learning.

Perfect for exploring the history and science of astronomy.

Planetariums are not eligible for additional discounts.