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(Celestial Objects) a planet of the solar system, as opposed to an asteroid (minor planet)
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|Noun||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 direction|
astronomy, uranology - the branch of physics that studies celestial bodies and the universe as a whole
biosphere - the regions of the surface and atmosphere of the Earth (or other planet) where living organisms exist
inferior planet - any of the planets whose orbit lies inside the earth's orbit
gas 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 sky
outer 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 field
superior planet - any of the planets whose orbit lies outside the earth's orbit
terrestrial planet - a planet having a compact rocky surface like the Earth's; the four innermost planets in the solar system
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