(636872) 2014 YX49

Minor planet co-orbital with Uranus August 2021 yes (636872) 2014 YX 49 #C7FF8F Animation of 2014 YX49 relative to Sun and Uranus 1600-2500.gif Animation of 2014 YX 49 relative to Sun and Uranus 1600–2500Magenta 2014 YX 49Lime UranusYellow Sun Mount Lemmon Survey Mount Lemmon Obs. November 21, 2006 Uranus trojan centaurdistant (636872) 2014 YX 49 February 16, 2017 (JD 2457800.5) 1 4876 days (13.35 yr) 19.1304 AU Tm on 13.8401 AU Tm on 24.4207 AU Tm on on 0.276539 25.55097° 91.44425° 280.584° 12.9424 AU Tm on 9.47006 AU Tm on 83.67 yr (30562 d) 75.587° 77 km (est. at 0.09) 21.6 8.8 (636872) 2014 YX 49 is a centaur and Uranus co-orbital, approximately 77 km mi off 2 us in diameter. Discovered by the Mount Lemmon Survey on November 21, 2006, it is the second known centaur on a tadpole orbit with Uranus, and the fourth Uranus co-orbital discovered after 83982 Crantor, (687170) 2011 QF 99 and (472651) 2015 DB 216. Description 2014 YX 49 is a temporary trojan of Uranus, the second one (2011 QF 99 was identified first) to be confirmed as currently trapped in such a resonant state. This object may have remained as a Uranian trojan for about 60,000 years and it can continue that way for another 80,000 years. Numerical integrations suggest that it may stay within Uranus's co-orbital zone for nearly one million years. Besides being a Uranian trojan, 2014 YX 49 is trapped in the 7:20 mean motion resonance with Saturn as well; therefore, this minor body is currently subjected to a three-body resonance. The other known Uranian trojan, 2011 QF 99, is also in this resonant configuration. See also 83982 Crantor (472651) 2015 DB 216 (687170) 2011 QF 99 List of centaurs (small Solar System bodies) 2014 YX49 References 2014 YX49 - Minor Planet Center http://www.minorplanetcenter.net/db_search/show_object?object_id=2014+YX49&commit=Show Minor Planet Center International Astronomical Union 20 January 2017 2015-01-28 last obs. JPL Small Body Database Browser http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2014%20YX49 JPL NASA 20 January 2017 de la Fuente Marcos Raúl de la Fuente Marcos Carlos Asteroid 2014 YX49: a large transient Trojan of Uranus Monthly Notices of the Royal Astronomical Society 15 May 2017 467 2 1701.05541 10.1093/mnras/stx197 1561–1568 free 2017MNRAS.467.1561D List of Known Trans-Neptunian Objects Johnston's Archive 18 August 2020 Johnston Wm. Robert http://www.johnstonsarchive.net/astro/tnoslist.html 12 August 2021 External links Far-off asteroid caught cohabiting with Uranus around the Sun 2636872 636872 (636872) 2014 YX 49 Category:Trojan minor planets Category:Uranus co-orbital minor planets Category:Centaurs (small Solar System bodies) Category:Discoveries by MLS 20061121