天てん象しょう儀ぎ

noun

planetarium

A device that projects images of celestial bodies onto a dome. Often used interchangeably with プラネタリウム, though 天象儀 may sound slightly more technical or formal.

See also: プラネタリウム

• 科か学がく館かんの天てん象しょう儀ぎで星ほし空ぞらの解かい説せつを聞きいた。

  I listened to an explanation of the starry sky at the science museum's planetarium.