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The following outline is provided as an overview of and topical guide to the Solar System:
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(614689) 2020 XL5 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 L4 Lagrangian point (leading 60°), one of the dynamically stable locations where the combined gravitational force acts through the Sun's and Earth's barycenter. Analysis of 2020 XL5's trojan orbit stability suggests it will remain around Earth's L4 point for at least four thousand years until gravitational perturbations from repeated close encounters with Venus destabilize its trojan configuration. With a diameter about 1.2 km (0.75 mi), 2020 XL5 is the second Earth trojan discovered, after 2010 TK7, and is the largest of its kind known.
References
- 1 2 "Minor Planet Discoverers (by number)". Minor Planet Center. 4 September 2016. Retrieved 25 September 2016.
- 1 2 3 Schmadel, Lutz D. (2006). "(15068) Wiegert [3.99, 0.22, 1.7]". Dictionary of Minor Planet Names – (15068) Wiegert, Addendum to Fifth Edition: 2003–2005. Springer Berlin Heidelberg. pp. 90–91. doi:10.1007/978-3-540-34361-5_923. ISBN 978-3-540-34361-5.
- ↑ Wiegert, Paul A.; Holman, Matt J. (April 1997). "The Stability of Planets in the Alpha Centauri System". Astronomical Journal. 113: 1445–1450. arXiv: astro-ph/9609106 . Bibcode:1997AJ....113.1445W. doi:10.1086/118360. S2CID 18969130 . Retrieved 11 July 2016.
- ↑ Connors, M. G.; Wiegert, P.; Veillet, C. (December 2011). "Discovery of an Earth Trojan Asteroid". American Geophysical Union. 23: P23C–1727. Bibcode:2011AGUFM.P23C1727C . Retrieved 11 July 2016.
- ↑ "Discovery of the first quasi-satellite of Venus". Tuorla Observatory . 17 August 2004. Retrieved 29 January 2024.
- ↑ Mikkola, S.; Brasser, R.; Wiegert, P.; Innanen, K. (2004). "Asteroid 2002 VE68, a quasi-satellite of Venus". Monthly Notices of the Royal Astronomical Society. 351 (3): L63–L65. Bibcode:2004MNRAS.351L..63M. doi:10.1111/j.1365-2966.2004.07994.x.
