Planet - Wikipedia, the free encyclopedia
Shown in order from the Sun and in true color. Sizes are not to scale. A planet (from Ancient Greek ἀστήρ πλανήτης, astēr planētēs, or πλάνης ἀστήρ, plánēs astēr, meaning "wandering star")[1] is an astronomical object orbiting a star or stellar remnant th...