An apparatus which illustrates, by the revolution of balls moved by wheelwork, the relative size, periodic motions, positions, orbits, etc., of bodies in the solar system.
Small clockwork or hand-cranked model of the planetary system - a popular astronomical demonstrational apparatus or educational demonstrator during the 18th and 19th centuries. An orrery might complement an astrolabe or a pair of celestial and terrestrial globes in a library or schoolroom.
planetarium consisting of an apparatus that illustrates the relative positions and motions of bodies in the solar system by rotation and revolution of balls moved by wheelwork; sometimes incorporated in a clock
a device for illustrating planetary motion and is often a small mechanical model of the solar system
a device that shows the planets in motion around the sun
a dynamic model of the solar system, designed to show the positions, relative orbits and distances of the planets about the Sun
a mechanical astronomical demonstration device used to shown the relative sizes and motions of the known planets in the solar system
a mechanical device designed to illustrate the motions of the planets in their orbits about the Sun
a mechnical model of the solar system
a model of the solar system that shows the relative positions and motions of the planets and moons
a model of the solar system, used for showing where the planets are in relation to each other (and the Sun)
an apparatus showing the relative positions and motions of bodies in the solar system by balls moved by a clockwork
an astronomical model which displays the motion of the planets around the sun, and the movement of their satellites
an old-fashioned moving picture of the solar system, and an animated image on a computer screen in a multi-media treatise on astronomy is a modern version
a planetary model of our Solar System
a working model of the 'solar system'
A clockwork model of the planetary system, named after Charles Boyle, fourth Earl of Orrery.
An orrery is a mechanical device that illustrates the relative positions and motions of the planets and moons in the solar system in heliocentric model. They are typically driven by a large clockwork mechanism with a globe representing the Sun at the centre, and with a planet at the end of each of the arms.
