exoplanet

/ˈeksəʊplænɪt/ (bre, ipa) · /ˈeksəʊplænɪt/ (ame, ipa) · /ˈek-sō-ˌpla-nət ˌek-sō-ˈpla-/ (ame, mw)

exoplanet — 名詞

  • exoplanetsingular
  • exoplanetsplural

1. a world that goes around a star beyond the Sun, not one in our own solar system.

1.名詞C1
釋義

系外行星

在太陽系外繞恆星運行的行星

a world that goes around a star beyond the Sun, not one in our own solar system.

例句

Valentina cheered when the telescope team confirmed a rocky exoplanet.

Valentina 在望遠鏡團隊確認一顆岩石系外行星時，高興得歡呼。

discover/confirm an exoplanet

A small exoplanet was found around a cool red star.

一顆小型系外行星在一顆較冷的紅矮星旁被發現。

passive: exoplanet was found

同義詞
  • extrasolar planet

    formal technical synonym often used in astronomy writing

  • alien world

    more journalistic and less exact than the scientific term

  • planet

    broader term that also includes worlds in our solar system

文法句型

discover an exoplanet

exoplanet orbiting a star

Earth-like exoplanet

用法筆記

Usually countable and mainly used in science writing or science news. Writers often add words such as 'rocky', 'Earth-like', or 'distant' to describe the kind of world being discussed.

常見錯誤

❌Scientists found an exoplanet in our solar system.
✅Scientists found a planet in our solar system.
💡'exoplanet' is only used for planets beyond our solar system.
❌The article described an exoplanet of another star.
✅The article described an exoplanet orbiting another star.
💡English normally says an exoplanet 'orbits' a star.