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planet    音标拼音: [pl'ænət]
n. 行星

行星

planet
n 1: (astronomy) any of the nine large celestial bodies in the
solar system that revolve around the sun and shine by
reflected light; Mercury, Venus, Earth, Mars, Jupiter,
Saturn, Uranus, Neptune, and Pluto in order of their
proximity to the sun; viewed from the constellation
Hercules, all the planets rotate around the sun in a
counterclockwise direction [synonym: {planet}, {major planet}]
2: a person who follows or serves another [synonym: {satellite},
{planet}]
3: any celestial body (other than comets or satellites) that
revolves around a star

Planet \Plan"et\, n. [OE. planete, F. plan[`e]te, L. planeta,
fr. Gr. ?, and ? a planet; prop. wandering, fr. ? to wander,
fr. ? a wandering.]
1. (Astron.) A celestial body which revolves about the sun in
an orbit of a moderate degree of eccentricity. It is
distinguished from a comet by the absence of a coma, and
by having a less eccentric orbit. See {Solar system}.
[1913 Webster]

Note: The term planet was first used to distinguish those
stars which have an apparent motion through the
constellations from the fixed stars, which retain their
relative places unchanged. The inferior planets are
Mercury and Venus, which are nearer to the sun than is
the earth; the superior planets are Mars, the
asteroids, Jupiter, Saturn, Uranus, and Neptune, which
are farther from the sun than is the earth. Primary
planets are those which revolve about the sun;
secondary planets, or moons, are those which revolve
around the primary planets as satellites, and at the
same time revolve with them about the sun.
[1913 Webster]

2. A star, as influencing the fate of a men.
[1913 Webster]

There's some ill planet reigns. --Shak.
[1913 Webster]

{Planet gear}. (Mach.) See {Epicyclic train}, under
{Epicyclic}.

{Planet wheel}, a gear wheel which revolves around the wheel
with which it meshes, in an epicyclic train.
[1913 Webster]

21 Moby Thesaurus words for "planet":
Earth, Jupiter, Mars, Mercury, Neptune, Pluto, Saturn, Uranus,
Venus, asteroid, globe, inferior planet, major planet,
minor planet, planetoid, secondary planet, solar system,
superior planet, terrestrial planet, wanderer, world



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  • Planet - Wikipedia
    The word planet comes from the Greek πλανήται (planḗtai) 'wanderers' In antiquity, this word referred to the Sun, Moon, and five points of light visible to the naked eye that moved across the background of the stars—namely, Mercury, Venus, Mars, Jupiter, and Saturn
  • About the Planets - Science@NASA
    Is There Another Planet in the Solar System? It's an intriguing idea that might explain some current mysteries, but direct evidence of another planet has yet to be found
  • Planets in Order From the Sun | Pictures, Facts, and Planet Info
    The ongoing debate over planet classification persists amidst our expanding knowledge of the universe, which includes the discovery of numerous exoplanets, potentially including habitable ones within the Milky Way Galaxy, raising questions about the applicability of our current definitions
  • Planets in Order From the Sun | Learn About The Solar System
    A planet is a celestial body that (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (c) has cleared the neighborhood around its orbit
  • Planet | Definition, Solar System, Characteristics, Facts | Britannica
    Planet, broadly, any relatively large natural body that revolves in an orbit around the Sun or around some other star and that is not radiating energy from internal nuclear fusion reactions There are eight planets orbiting the Sun in the solar system
  • Planet Labs: Satellite Imagery Earth Data Analytics
    Discover how Planet's daily satellite imagery and insights empower global decisions and actions with a multidimensional view of our changing planet
  • The Planets In Our Solar System - YouTube
    Here we will visit the battered planet Mercury, the scorching planet Venus, our home planet Earth, the red planet Mars, the massive planet Jupiter, the beautiful planet Saturn, as well as
  • Gyms in Sacramento, California - Planet Fitness
    Find local gyms in Sacramento, California and nearby Enjoy unlimited fitness training, club access, and a Judgement Free Zone® Explore local clubs near you
  • The Nine Planets of The Solar System | Eight Planets Without Pluto
    The Nine Planets is an encyclopedic overview with facts and information about mythology and current scientific knowledge of the planets, moons, and other objects in our solar system and beyond The smallest and fastest planet, Mercury is the closest planet to the Sun and whips around it every 88 Earth days
  • Where Are the Planets Now? – Live 3D Solar System Simulator
    This is the solar system live Every planet you see in the model above is placed based on real orbital mechanics calculated from the J2000 astronomical epoch When you select a date, you are literally traveling through time and watching the planets slide along their true orbital paths around the Sun So yes — this is where the planets are





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