planet

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See also Planet, planèt, and plånet

Contents

[edit] English

Wikipedia has an article on:

Wikipedia

[edit] Etymology

From Latin planeta, planetes, from Ancient Greek πλανήτης (planētēs) variant of πλάνης (planēs, “wanderer, planet”).

[edit] Pronunciation

[edit] Noun

planet (plural planets)

  1. (obsolete, except historical or astrology) Each of the seven major bodies which move relative to the fixed stars in the night sky—the Moon, Mercury, Venus, the Sun, Mars, Jupiter and Saturn.
    • 1749, Henry Fielding, Tom Jones, Folio Society 1973, p. 288:
      The moon . . . began to rise from her bed, where she had slumbered away the day, in order to sit up all night. Jones had not travelled far before he paid his compliments to that beautiful planet, and, turning to his companion, asked him if he had ever beheld so delicious an evening?
  2. A large body which directly orbits a star (or star cluster) but which has not attained nuclear fusion. (The Galilean moons, the first fifteen or so asteroids, and Pluto were included as planets of the Sun in the 17th, 19th, and 20th centuries, respectively.)
  3. (officially, since 2006) A body which orbits the Sun directly and is massive enough to be in hydrostatic equilibrium (effectively meaning a spheroid) and to have "cleared its orbit" (is the clearly dominant body in its neighborhood); specifically, the eight major bodies of Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.
  4. (minority usage since 2006) A body which orbits the Sun directly and is massive enough to be in hydrostatic equilibrium: the eight major planets, as above, as well as the many dwarf planets, including Pluto.
  5. (minority usage) A planetary-mass object (planemo): the major planets, dwarf planets, and satellite planets (moons in hydrostatic equilibrium).

[edit] Usage notes

The term planet originally meant any star which wandered across the sky, and generally included comets and the Sun and Moon. With the Copernican revolution, the Earth was recognized as a planet, and the Sun was seen to be fundamentally different. The Galileian satellites of Jupiter were at first called planets, but later reclassified as satellites, along with the Moon. The first asteroids were also thought to be planets, but were reclassified when it was realized that there were a great many of them, crossing each other's orbits, in a zone where only a single planet had been expected. Likewise, Pluto was found where an outer planet had been expected, but doubts were raised when it turned out to cross Neptune's orbit and to be much smaller than the expectation required. When Eris, an outer body more massive than Pluto, was discovered, the International Astronomical Union (IAU) officially defined the word "planet" as above. However, a significant minority have refused to accept the IAU definition. Many simply continue with the nine planets that had been recognized prior to the discovery of Eris. Others are of the opinion that orbital parameters should be irrelevant, and that any equilibrium (≈ spherical) body in orbit around a star is a planet; there are likely several hundred such bodies in the Solar system. Still others argue that orbiting a star should also be irrelevant, thus re-accepting the Galileian satellites (as well as a dozen others) as planets.

Note that the 2006 IAU definition defines a planet in respect to the Sun, and is thus technically inapplicable to exoplanets.

[edit] Derived terms

terms derived from "planet"

[edit] Related terms

[edit] Translations

each of the seven major bodies which move relative to the fixed stars in the night sky
rocky or gaseous spherical bodies orbiting the Sun
similar body in orbit around a star
The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Help:How to check translations.
Translations to be checked

[edit] See also

[edit] References

  • First Steps to Astronomy and Geography, 1828, (Hatchard & Son: Piccadilly, London).

[edit] Anagrams

[edit] Albanian

Albanian Wikipedia has an article on:

Wikipedia sq

[edit] Pronunciation

  • IPA: [planɛt]

[edit] Noun

planet m. (indefinite plural planete, definite singular planeti, definite plural planetet)

  1. planet

[edit] Declension

declension of planet
indefinite forms
(trajta të pashquara)		 definite forms
(trajta të shquara)
singular
(numri njëjës)		 plural
(numri shumës)		 singular
(numri njëjës)		 plural
(numri shumës)
nominative
(emërore)		 planet planete planeti planetet
accusative
(kallëzore)		 planet planete planetin planetet
genitive
(gjinore)
(i/e/të/së)		 planeti planeteve planetit planeteve
dative
(dhanore)		 planeti planeteve planetit planeteve
ablative
(rrjedhore)		 planeti planetesh planetit planeteve

[edit] German

[edit] Verb

planet

  1. Second-person plural subjunctive I of planen.

[edit] Norwegian

[edit] Etymology

From Old Norse planéta.

[edit] Noun

planet m.

  1. a planet

[edit] Inflection

    Inflection of planet
indefinite singular definite singular indefinite plural definite plural
Bokmål m planet planeten planeter planetene
Nynorsk m planet planeten planetar planetane

[edit] References

  • “planet” in The Bokmål Dictionary / The Nynorsk Dictionary – Dokumentasjonsprosjektet.

[edit] Polish

[edit] Noun

planet f.

  1. genitive plural of planeta

[edit] Romansch

[edit] Noun

planet m. (plural planets)

  1. (astronomy, astrology) planet

[edit] Serbo-Croatian

[edit] Alternative forms

[edit] Pronunciation

  • IPA: /plǎneːt/
  • Hyphenation: pla‧net

[edit] Noun

plànēt m. (Cyrillic spelling пла̀не̄т)

  1. planet

[edit] Declension

    declension of planet
singular plural
nominative planet planeti
genitive planeta planeta
dative planetu planetima
accusative planet planete
vocative planete planeti
locative planetu planetima
instrumental planetom planetima

[edit] Slovene

[edit] Pronunciation

  • IPA: /plaˈneːt/

[edit] Noun

planét m. (dual planeta, plural planeti) inanimate

  1. (astronomy) planet

[edit] Declension

declension of planet
singular (ednina) dual (dvojina) plural (množina)
nominative (imenovalnik) planet planeta planeti
genitive (rodilnik) planeta planetov planetov
dative (dajalnik) planetu planetoma planetom
accusative (tožilnik) planet planeta planete
locative (mestnik) planetu planetih planetih
instrumental (orodnik) planetom planetoma planeti

[edit] Derived terms

[edit] Swedish

[edit] Pronunciation

[edit] Noun

planet c.

  1. (astronomy) planet
  2. definite singular of plan

[edit] Declension

Declension of planet 1
singular plural
Common indefinite definite indefinite definite
nominative planet planeten planeter planeterna
genitive planets planetens planeters planeternas
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