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Planetarium   /plˌænətˈɛriəm/   Listen
Planetarium

noun
(pl. planetariums, planetaria)
1.
A building housing an instrument for projecting the positions of the planets onto a domed ceiling.
2.
An optical device for projecting images of celestial bodies and other astronomical phenomena onto the inner surface of a hemispherical dome.
3.
An apparatus or model for representing the solar systems.





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"Planetarium" Quotes from Famous Books



... to each other, in respect to distances, magnitudes, times, and phases. When the absolute complexity of the movements of the bodies composing the solar system is considered, it is not so much a matter of wonder that a planetarium which shall thus imitate them is a very delicate and complicated machine as that it should lie within the ...
— Scientific American Supplement, No. 447, July 26, 1884 • Various


Words linked to "Planetarium" :   building, orrery, simulation, optical device, edifice, model


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