Meaning of the word planetarium in English

What does planetarium mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

planetarium

US /ˌplæn.ɪˈter.i.əm/
UK /ˌplæn.ɪˈteə.ri.əm/
"planetarium" picture

Noun

a building or room in which images of stars, planets, and other celestial objects are projected onto a domed ceiling

Example:
We visited the local planetarium to learn about the constellations.
The school trip included a show at the planetarium.