orreries

Meaning

of Orrery

Examples

King, Henry "Geared to the Stars: the evolution of planetariums, orreries, and astronomical clocks", University of Toronto Press, 1978 and modern reproductions have been made. Source: Internet

In fact, many planetaria today have what are called projection orreries, which project onto the dome a Sun with planets (usually limited to Mercury up to Saturn) going around it in something close to their correct relative periods. Source: Internet

Explanation All orreries are planetariums or planetaria (alternative plural). Source: Internet

Human orreries, where humans move about as the planets, have also been constructed, but most are temporary. Source: Internet

Planetariums (orreries) can range widely in size from hand-held to room-sized. Source: Internet

Some planetariums have taken advantage of this to use orreries to simulate planets and their moons. Source: Internet

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