planetarium
Definitions of planetarium
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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
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an optical device for projecting images of celestial bodies and other astronomical phenomena onto the inner surface of a hemispherical dome
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a building housing an instrument for projecting the positions of the planets onto a domed ceiling
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an apparatus or model for representing the solar systems
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