太たい陽よう系けい外がい

noun which may take the genitive case particle 'no', noun

extrasolar; outside the solar system

Used in astronomy to describe objects or regions beyond our solar system, including trans-Neptunian objects. Often modifies nouns like 惑星 (planet) or 天体 (celestial body).

• 太たい陽よう系けい外がい惑わく星せいの探たん査さが進すすんでいる。

  Exploration of extrasolar planets is advancing.

• この天てん体たいは太たい陽よう系けい外がいに位い置ちしている。

  This celestial body is located outside the solar system.