大だい惑わく星せい

noun

major planet

General term for a large planet, often used in contrast to minor planets or asteroids. In modern astronomy, it can refer to the eight planets of the solar system.

• 太たい陽よう系けいの大だい惑わく星せいは全ぜん部ぶで八やっつある。

  There are eight major planets in the solar system.

noun

giant planet; Jovian planet

Specifically refers to the large gas or ice giants like Jupiter and Saturn, as opposed to terrestrial planets. Used in planetary science contexts.

See also: 木星型惑星

• 木もく星せいは代だい表ひょう的てきな大だい惑わく星せいだ。

  Jupiter is a typical giant planet.