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Planetarium
01
a building with a dome in which moving images of planets, starts, and constellations are projected for educational or entertainment purposes
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
03
an optical device for projecting images of celestial bodies and other astronomical phenomena onto the inner surface of a hemispherical dome
planetarium
n
Example
The astronomer gave a lecture on exoplanets at the planetarium last weekend.
The school field trip included a visit to the planetarium to learn about the solar system.
We watched a fascinating documentary about black holes at the local planetarium.
Children were excited to see the planets up close at the planetarium’s interactive exhibit.
The planetarium offers nightly sky shows that are both educational and entertaining.
