SceneryStack port of the NAAP 'Solar System Models' lab. Compare the Earth-centered Ptolemaic model (deferent and epicycle) with the Sun-centered system and the planetary configurations it produces.
This simulation is inspired by materials from the Nebraska Astronomy Applet Project (NAAP). It is an independent SceneryStack reimplementation, not an official NAAP product.
GNU Affero General Public License v3.0 or later — see org LICENSE.