a building with a dome in which moving images of planets, starts, and constellations are projected for educational or entertainment purposes
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02
a device that simulates the motion and appearance of celestial objects such as planets, stars, and galaxies, typically using projectors and optical systems to depict the solar system and universe
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03
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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Example
The holographic projection of the planetarium made the stars seem incredibly realistic.
