trinary star

Noun

(astronomy) A stellar system that has three stars orbiting around each other; triple star.

Japanese Meaning

三重星系（または三連星）: 3つの星が互いに軌道を描く天体システム

The telescope captured an unprecedented view of a distant trinary star, revealing complex orbital dynamics between its three suns.

望遠鏡は遠方の三重連星を前例のない詳細で捉え、三つの恒星間にある複雑な軌道力学を明らかにした。

Sense（1）

(astronomy) A stellar system that has three stars orbiting around each other; triple star.

trinary stars

（ plural ）