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|Noun||1.||heavenly body - natural objects visible in the sky |
natural object - an object occurring naturally; not made by man
major planet, 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
planet - any celestial body (other than comets or satellites) that revolves around a star
planetesimal - one of many small solid celestial bodies thought to have existed at an early stage in the development of the solar system
primary - (astronomy) a celestial body (especially a star) relative to other objects in orbit around it
quasar, quasi-stellar radio source - a starlike object that may send out radio waves and other forms of energy; many have large red shifts
satellite - any celestial body orbiting around a planet or star
star - (astronomy) a celestial body of hot gases that radiates energy derived from thermonuclear reactions in the interior
star - any celestial body visible (as a point of light) from the Earth at night
cosmos, macrocosm, universe, world, existence, creation - everything that exists anywhere; "they study the evolution of the universe"; "the biggest tree in existence"