noun
- plural of planetarium; buildings or rooms containing equipment that projects images of stars, planets, and other celestial objects onto a domed ceiling for educational or entertainment purposes
Examples
- Many science museums have planetariums that offer shows about space exploration.
- The city built two new planetariums to promote astronomy education.
- Students visited several planetariums during their field trip to learn about constellations.
- Modern planetariums use digital projection systems to create realistic night sky displays.
- The university operates three planetariums for both research and public education.
- Planetariums often host special events during eclipses and meteor showers.