Planet X

/ˈplænɪt ɛks/

Giriş yap, bu kelimeyi “Kelimelerim”e ekle.

Tanımlar (İngilizce)

  1. özel isim A hypothetical planet in the Solar system, beyond the currently known outermost planet. (The term was applied to Eris for a short while, when Pluto was still considered the ninth planet.)
  2. özel isim A theoretical planet responsible for reported gravitational perturbations of Neptune's orbit. (This was initially believed to be Pluto. The reported perturbations were an error.)
  3. özel isim A theoretical planet responsible for observed gravitational perturbations of Uranus' orbit. (This planet was discovered and is now known as Neptune.)