Orrery (or-rery), n. [Charles Boyle - 1731 4th Earl of Orrery] an apparatus showing the relative positions and motions of bodies in the solar system by balls moved by wheelwork.
The Orrery is a program that works in conjunction with Geomview to display and animate an accurate model of the solar system. It displays all the planets, most of their moons, and a few comets, and lets you specify the (earth) date and time at which you want to see the configuration. It will animate the motions of the bodies at a rate that you specify, either forwards or backwards in time.
The Orrery was written by Geometry Center staff member Stuart Levy.
Examples of Orrery Usage
Downloading the Orrery (available for Unix only)
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Created: Feb 20 1994 ---
Last modified: Thu Apr 30 14:49:42 1998