
Orrery - Wikipedia
An orrery is a mechanical model of the Solar System that illustrates or predicts the relative positions and motions of the planets and moons, usually according to the heliocentric model. It …
Armillary sphere - Wikipedia
An armillary sphere (variations are known as spherical astrolabe, armilla, or armil) is a model of objects in the sky (on the celestial sphere), consisting of a spherical framework of rings, …
Description and Use of Both the Globes, the Armillary Sphere, and Orrery
This book explains how to use the terrestrial and celestial globes, an armillary sphere (which shows the movements of the sky), and an orrery (which models the motions of the planets). …
Spheres and Planetaria (Introduction) - New York University
On this orrery the sun, moon and planets revolve along a flat surface driven underneath by a hidden gearworks. Spherical bands surrounding the flat surface represent the celestial …
Our orrery is a shadow orrery - two of the bodies, the Sun and the Earth, are represented by small light bulbs. Whenever the orrery is switched on, one or the other of these bulbs is lit. Five …
Orreries and Astronomical Clocks - SpringerLink
2023年9月8日 · Numerous astronomical machines illustrating the motion of the planets for educational purposes, created during the eighteenth and nineteenth centuries, are named …
Orrery - Sky's The Limit Observatory & Nature Center
An Orrery is a model of the Solar System, usually constructed as a clock-work mechanism that sits on a desktop. A large, outdoor “human” Orrery is located just a few hundred yards before …
Orrery | Encyclopedia MDPI
2022年11月4日 · An orrery is a mechanical model of the Solar System that illustrates or predicts the relative positions and motions of the planets and moons, usually according to the …
What is an Orrery? - Planetaria.co.uk
Armillary spheres are mainly useful for explaining the apparent motions of the fixed stars, but in many examples, sun, moon or planets are represented. The word orrery was first used in …
Antique astronomy orrery or armillary sphere
Find the worth of your antique astronomy orrery or armillary sphere. Research our price guide with auction results on 28 items from $81 to $53,680.