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
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
Trojan planets — ▪ astronomy two groups of asteroids named for heroes of Greece and Troy in Homer s Iliad. These minor planets revolve around the Sun in the Lagrangian points of Jupiter s (Jupiter) orbit. These are positions where a small body can be held,… … Universalium
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,… …
Jupiter trojan — The Jupiter trojans, commonly called simply trojans or trojan asteroids, are a large group of objects that share the orbit of the planet Jupiter around the Sun. Relative to a coordinate system that is fixed on Jupiter, each Trojan orbits one or… … Wikipedia
Outline of astronomy — Mauna Kea in Hawaii is one of the world s premier observatory sites. Pictured is the W. M. Keck Observatory, an optical interferometer. The following outline is provided as an overview of and topical guide to astronomy: Astronomy – studies the… … Wikipedia
Provisional designation in astronomy — is the naming convention applied to astronomical objects immediately following their discovery. The provisional designation is usually superseded by a permanent designation once a reliable orbit has been calculated. In the case of asteroids, so… … Wikipedia
Timeline of solar system astronomy — Timeline of solar system astronomyAntiquity* 2137 BC, October 22 Chinese astronomers record a solar eclipse *ca. 2000 BC Chinese determine that Jupiter needs 12 years to complete one revolution of its orbit. * 2nd millennium BC earliest possible… … Wikipedia
List of Mars trojan asteroids — The L5 group (shown in green) of Asteroids on the orbit of Mars (Mars is shown in red). The L4 group is the light blue region also on Mars orbit. The Mars trojans are a group of objects that share the orbit of the planet Mars around the … Wikipedia
