恒こう星せい系けい

noun

star system

Refers to a system of stars gravitationally bound together, such as a binary or multiple star system. Not to be confused with 太陽系 (solar system) or 銀河 (galaxy).

• この恒こう星せい系けいには三みっつの太たい陽ようがある。

  This star system has three suns.

• 連れん星せいは最もっとも一いっ般ぱん的てきな恒こう星せい系けいの一ひとつだ。

  Binary stars are one of the most common types of star systems.