Trojan asteroid
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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
Earth Trojan asteroid — Earth Trojans are asteroids located in the Earth Sun Lagrangian points L4 and L5. They are named after the Trojan asteroids that occupy the analogous Lagrangian points of Jupiter.Their location in the sky as observed from Earth s surface would be … Wikipedia
Mars Trojan asteroid — Mars Trojans are a large group of objects that share the orbit of the planet Mars around the Sun. They can be found around the two Lagrangian points 60° ahead and behind of Mars.Presently, this family consists of no more than four asteroids:cite… … Wikipedia
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
Asteroid (disambiguation) — Asteroid may refer to:*Asteroid, the astronomical object; this is the primary definition. Specific variants include the following: ** Amor asteroid ** Apollo asteroid ** Apohele asteroid ** Arjuna asteroid ** Aten asteroid ** Binary asteroid **… … Wikipedia
asteroid — asteroidal, adj. /as teuh royd /, n. 1. Also called minor planet. Astron. any of the thousands of small bodies of from 480 miles (775 km) to less than one mile (1.6 km) in diameter that revolve about the sun in orbits lying mostly between those… … Universalium
Asteroid mining — 433 Eros is a stony asteroid in a near Earth orbit Asteroid mining refers to the possibility of exploiting raw materials from asteroids and planetoids in space, including near Earth objects. Minerals and volatiles could be mined from an asteroid… … Wikipedia
Asteroid moon — An asteroid moon is an asteroid that orbits another asteroid as its natural satellite. It is thought that many asteroids may possess moons, in some cases quite substantial in size. Discoveries of asteroid moons (and binary objects, in general)… … Wikipedia
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 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
