2019 UO14

2019 UO₁₄ is the first ever confirmed Saturnian trojan,^[1] orbiting the Sun around the L₄ Lagrangian point. It was discovered on 23 October 2019 by the Pan-STARRS 1 telescope at Haleakala, Hawaii.^[2] The object was captured probably a few thousand years ago, and will remain there for 1,000 more years until influences from other outer planets remove 2019 UO₁₄ from its current trojan orbit.

Before Saturn captured 2019 UO₁₄, it was floating around the Solar System as a centaur. 2000 years ago, Saturn trapped the centaur in its L₄ point, making it into a trojan. However, due to continuous pulling from Jupiter and Uranus, eventually 2019 UO₁₄ would be ejected from its trojan orbit. It is suggested that there will be more Saturnian trojans to be discovered, since Saturn has a large gravitational pull.^[3]

• Hui 許, Man-To 文韜; Wiegert, Paul A.; Weryk, Robert; Micheli, Marco; Tholen, David J.; Deen, Sam; Walker, Andrew J.; Wainscoat, Richard (2024-11-01). "2019 UO 14: A Transient Trojan of Saturn". The Astrophysical Journal Letters. 975 (1): L3. doi:10.3847/2041-8213/ad84ef. ISSN 2041-8205.
• Pan, Nicolas; Gallardo, Tabaré (2025). "An attempt to build a dynamical catalog of present-day solar system co-orbitals". Celestial Mechanics and Dynamical Astronomy. 137 2. arXiv:2410.20015. doi:10.1007/s10569-024-10234-y.

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