(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

a person who follows or serves another

any celestial body (other than comets or satellites) that revolves around a star

an outer gear that revolves about a central sun gear of an epicyclic train

an outer gear that revolves about a central sun gear of an epicyclic train

of or relating to or resembling the physical or orbital characteristics of a planet or the planets

a building housing an instrument for projecting the positions of the planets onto a domed ceiling

an optical device for projecting images of celestial bodies and other astronomical phenomena onto the inner surface of a hemispherical dome

an apparatus or model for representing the solar systems

of or relating to or resembling the physical or orbital characteristics of a planet or the planets

of or relating to or characteristic of the planet Earth or its inhabitants

having no fixed course

involving the entire earth; not limited or provincial in scope

an outer gear that revolves about a central sun gear of an epicyclic train

(astrology) one of 12 equal areas into which the zodiac is divided

a nebula that was once thought to be a star with its planets but is now thought to be a very hot star surrounded by an expanding envelope of ionized gases that emit a fluorescent glow because of intense radiation from the star

one of many small solid celestial bodies thought to have existed at an early stage in the development of the solar system

(cosmology) the theory that the solar system was formed by the gravitational accumulation of planetesimals

any of numerous small celestial bodies that move around the sun