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In astronomy, a trojan is a small celestial body (mostly asteroids) that shares the orbit of a larger body, remaining in a stable orbit approximately 60° ahead of or behind the main body near one of its Lagrangian points L 4 and L 5. Trojans can share the orbits of planets or of large moons. Trojans are one type of co-orbital object.
Asteroids in the leading (L 4) orbit are named after Greek heroes (the "Greek node or camp" or "Achilles group"), and those at the trailing (L 5) orbit are named after the heroes of Troy (the "Trojan node or camp"). [2] The asteroids 617 Patroclus and 624 Hektor were named before the Greece/Troy rule was devised, resulting in a "Greek spy ...
This is a list of Jupiter trojans that lie in the Trojan camp, an elongated curved region around the trailing L 5 Lagrangian point, 60° behind Jupiter in its orbit.. All the asteroids at the trailing L 5 point have names corresponding to participants on the Trojan side of the Trojan War, except for 617 Patroclus, which was named before this naming convention was instituted.
The Trojan asteroids, which borrow their name from Greek mythology, orbit the sun in two swarms — one that’s ahead of Jupiter, the largest planet in our solar system, and a second one that ...
WISE, a space telescope launched into Earth orbit in December 2009, imaged 2010 TK 7 in October 2010 while carrying out a program to scan the entire sky from January 2010 to February 2011. Spotting an asteroid sharing Earth 's orbit is normally difficult from the ground, because their potential locations are generally in the daytime sky. [ 8 ]
NASA has blasted a spacecraft, traveling at speeds up to 92,000 mph, to the most mysterious asteroids in our solar system.Called the Trojan asteroids, they are trapped in two swarms — one in ...
Astronomers spotted a possible “sibling” planet that shares the orbit of another exoplanet in a system located 370 light-years away.
A hypothetical planet-sized Earth trojan the size of Mars, given the name Theia, is thought by proponents of the giant-impact hypothesis to be the origin of the Moon.The hypothesis states that the Moon formed after Earth and Theia collided, [10] showering material from the two planets into space.