释义 |
major planet
major planet n (Celestial Objects) a planet of the solar system, as opposed to an asteroid (minor planet) ThesaurusNoun | 1. | major planet - (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 directionplanetastronomy, uranology - the branch of physics that studies celestial bodies and the universe as a wholebiosphere - the regions of the surface and atmosphere of the Earth (or other planet) where living organisms existcelestial body, heavenly body - natural objects visible in the skyinferior planet - any of the planets whose orbit lies inside the earth's orbitgas giant, Jovian planet - any of the four outermost planets in the solar system; much larger than Earth and gaseous in nature (like Jupiter)daystar, morning star, Phosphorus, Lucifer - a planet (usually Venus) seen just before sunrise in the eastern skyouter planet - (astronomy) a major planet whose orbit is outside the asteroid belt (Jupiter, Saturn, Uranus, Neptune, Pluto)solar system - the sun with the celestial bodies that revolve around it in its gravitational fieldsuperior planet - any of the planets whose orbit lies outside the earth's orbitterrestrial planet - a planet having a compact rocky surface like the Earth's; the four innermost planets in the solar system |
Major Planet
major planet[′mā·jər ′plan·ət] (astronomy) Any of the four planets that are larger than earth: Jupiter, Saturn, Neptune, and Uranus. Planet, Major (also Jovian planet), any one of the planets Jupiter, Saturn, Uranus, and Neptune. The major planets are located beyond the asteroid belt. Compared to the terrestrial planets (inner planets), they have large diameters and masses, lower mean densities, thick atmospheres, short periods of rotation, and a large number of satellites. All these characteristics decrease in moving outward from Jupiter to Neptune. They are absent in the most distant planet, Pluto, and hence Pluto is not considered to be a major planet. major planet
Synonyms for major planetnoun (astronomy) any of the nine large celestial bodies in the solar system that revolve around the sun and shine by reflected lightSynonymsRelated Words- astronomy
- uranology
- biosphere
- celestial body
- heavenly body
- inferior planet
- gas giant
- Jovian planet
- daystar
- morning star
- Phosphorus
- Lucifer
- outer planet
- solar system
- superior planet
- terrestrial planet
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