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Trojan planet
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Trojan planet — A Trojan planet is a planet orbiting in the Lagrangian point of a star and a massive orbiting body, a gas giant or potentially a smaller companion star.No Trojan planets are currently known to exist, so their existence is purely theoretical.… … Wikipedia
Trojan (astronomy) — In astronomy, the adjective trojan refers to a minor planet or natural satellite (moon) that shares an orbit with a larger planet or moon, but does not collide with it because it orbits around one of the two Lagrangian points of stability, L4 and … Wikipedia
Trojan moon — A trojan moon is a natural satellite of a planet occupying the L4 or L5 equilateral Lagrangian points of a primary moon system. They are named by analogy with the Trojan asteroids, which occupy the L4 and L5 points of the Sun Jupiter system.Four… … Wikipedia
Trojan moon — noun a pseudo moon that occupies a Trojan point of a system See Also: Trojan, Trojan point, Trojan asteroid, Trojan planet … Wiktionary
Trojan — originally referred to a citizen of the city of Troy (Ilium) made legendary by the Trojan War (and Trojan Horse).Trojan may also refer to:Language * Trojan language, the language spoken in the ancient city of TroyAstronomy * Trojan (astronomy),… … Wikipedia
Extrasolar planet — Planet Fomalhaut b (inset against Fomalhaut s interplanetary dust cloud) imaged by the Hubble Space Telescope s coronagraph (NASA photo) … Wikipedia
Planet Neptun — Neptun … Deutsch Wikipedia
trojan asteroid — noun or trojan ( s) Usage: usually capitalized T Etymology: so called from its being one of the group whose members bear the names of Trojan heroes : an asteroid whose average position is at one corner of an equilateral triangle formed with the… … Useful english dictionary
trojan — 1. noun Software that appears to perform or actually performs a desired task for a user while performing a harmful task without the users knowledge or consent. 2. adjective Describing a satellite (moon or minor planet)) that shares an orbit with… … Wiktionary
Trojan group — /troʊdʒən ˈgrup/ (say trohjuhn groohp) noun Astronomy a group of asteroids which have the same mean motion as the planet Jupiter; they are divided into two subgroups which oscillate between two points, equidistant from the sun and Jupiter,… …
