Definition of orrery
: an apparatus showing the relative positions and motions of bodies in the solar system by balls moved by a clockwork
Recent Examples of orrery from the Web
Moon Phases is inspired by an orrery, a mechanical model that shows the relative position of planets in the solar system.
Rose then oversaw the building of other prototype components, such as the mechanical computer that sequences the clock’s chimes, the orrery and the solar synchronizer, which are on display in the Long Now Foundation’s San Francisco office.
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Origin and Etymology of orrery
Charles Boyle †1731 4th Earl of Orrery
First Known Use: 1713
Learn More about orrery
Britannica.com: Encyclopedia article about orrery
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