This simulator models the movement of planets around the sun in a simplified Ptolemaic model of the solar system, in which the Earth is motionless near the center. In this system, the sun …

Native Apps NAAP Resources Simulation Videos Old Flash Versions. Legacy. Legacy Home. NAAP ClassAction Interactives List of All Animations List of ClassAction Questions. ADVs. AU …

Ptolemaic Model Simulator Description The NAAP Solar System Models Lab introduces the universe as envisioned by early thinkers culminating in a detailed look at the Copernican model.

The Ptolemaic system formulated by Ptolemy (c. 90--c. 168 CE) circa 150 CE is an epicycle model. The Ptolemaic system is fully explicated in Ptolemy's book the Almagest (as posterity …

Links to animations and simulations for astronomy education are provided below. Topics include seasons, moon phases, coordinate systems, light, and more.

Here we list collections of simulations and individual simulations written in modern frameworks (e.g., HTML5). Simulations in Flash and Java are noted. Flash with Ruffle emulation. The …

Claudius Ptolemy was an Astronomer and Mathematician living in Egypt around 100-170AD. His most famous work is called the Almagest,"The Greatest", in which he describes a model of the …

re-implementation of NAAP Ptolemaic System Simulator https://astro.unl.edu/naap/ssm/animations/ptolemaic.html. Contribute to …

A VR flythrough of our stellar neighborhood, starting from an Earth-centric perspective where north is up. Check the flat-Earth myth for internal consistency by using sun altitude-angle …

ptolemaic planetary simulation You need to install java to use this applet! The above applet is based on the Planetary theory of Ptolemy, as described in the Almagest.