太陽系外惑星
た
い
よ
う
け
い
が
い
わ
く
せ
い
Meanings
1
extrasolar planet; exoplanet
Technical term in astronomy for a planet orbiting a star other than the Sun. Commonly used in scientific contexts.
Astronomers have discovered a new exoplanet.
Technology for analyzing the atmospheres of exoplanets is advancing.