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An Earth trojan is an asteroid that orbits the Sun in the vicinity of the Earth–Sun Lagrange points L 4 (leading 60°) or L 5 (trailing 60°), thus having an orbit ...
[4] [5] Trojan objects are most easily conceived as orbiting at a Lagrangian point, a dynamically stable location (where the combined gravitational force acts through the Sun's and Earth's barycenter) 60 degrees ahead of or behind a massive orbiting body, in a type of 1:1 orbital resonance. In reality, they oscillate around such a point.
2010 TK 7 was confirmed to be the first known Earth trojan in 2011. It is located in the L 4 Lagrangian point, which lies ahead of the Earth. [14] (614689) 2020 XL 5 was found to be another Earth trojan in 2021. It is also at L4. [15] [16] (687170) 2011 QF 99 was identified as the first Uranus trojan in 2013. It is located at the L 4 Lagrangian ...
(614689) 2020 XL 5 (provisional designation 2020 XL 5) is a near-Earth asteroid and Earth trojan discovered by the Pan-STARRS 1 survey at Haleakala Observatory, Hawaii on 12 December 2020. It oscillates around the Sun – Earth L 4 Lagrangian point (leading 60°), one of the dynamically stable locations where the combined gravitational force ...
Asteroid (614689) 2020 XL 5 is the second Earth trojan, confirmed in November 2021, oscillating around L 4 in a tadpole orbit and expected to remain there for at least 4000 years, until destabilized by Venus. [13]
Unusual Earth-associated orbit 2004 FH: 0.030: March 15, 2004: Discovered before it approached within 43,000 km of Earth on March 18, 2004. 2008 TC 3 ~0.003: October 6, 2008: First Earth-impactor to be spotted before impact (on October 7, 2008) (706765) 2010 TK 7 ~0.3: October 2010: First Earth trojan to be discovered 2014 RC ~0.017: September ...
The most common and best-known class is the trojan, which librates around one of the two stable Lagrangian points (Trojan points), L 4 and L 5, 60° ahead of and behind the larger body respectively. Another class is the horseshoe orbit , in which objects librate around 180° from the larger body.
Earth trojan; 0–9 (614689) 2020 XL5 (706765) 2010 TK7 This page was last edited on 25 December 2017, at 23:49 (UTC). Text is available under the Creative Commons ...