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2013 SY99, also known by its OSSOS survey designation uo3L91, is a trans-Neptunian object discovered on September 29, 2013 by the Outer Solar System Origins Survey using the Canada–France–Hawaii Telescope at Mauna Kea Observatory. This object orbits the Sun between 50 and 1,300 AU (7.5 and 190 billion km), and has a barycentric orbital period of nearly 20,000 years. It has the second largest semi-major axis yet detected for an orbit with a perihelion beyond the zone of strong influence of Neptune (q > 38), second only to 541132 Leleākūhonua, but exceeding the semi-major axes of Sedna, 2012 VP113 and 2010 GB174. 2013 SY99 has one of highest perihelion of any known extreme trans-Neptunian object, behind sednoids including Sedna (76 AU), 2012 VP113 (80 AU), and Leleākūhonua (65 AU).

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  • 2013 SY99
  • 2013 SY99
  • 2013 SY99
  • 2013 SY99
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  • 2013 SY99 ist ein transneptunisches Objekt, das aufgrund seiner Bahneigenschaften zu den Sednoiden zählt.
  • 2013 SY99 también conocido como uo3L91 es un objeto del cinturón de Kuiper (KBO) descubierto en septiembre del año 2013 desde el Observatorio Canada, Francia, Hawái utilizando el programa de investigación "Outer Solar System Origins Survey" «orígenes del sistema solar externo» (OSSOS, por sus siglas en inglés). Este objeto orbita alrededor del Sol entre 50 y 1430 UA (7,5 y 213,9 billones de km), y tiene una periodo orbital de más de 20 000 años.​​ Según el astrónomo Michael E. Brown, el descubrimiento de uo3L91 proporciona evidencia adicional de la existencia del Planeta Nueve.​
  • 2013 SY99(別名 uo3L91)は、エッジワース・カイパーベルトにある太陽系外縁天体(エッジワース・カイパーベルト天体)である。 2013年9月29日に、マウナ・ケア山のカナダ・フランス・ハワイ望遠鏡の太陽系外調査によって発見された。この天体は太陽からおおよそ50から1300天文単位の間を、およそ2万年かけて公転する。 この軌道長半径は当時発見されてきた軌道の中で最も長く、近日点においては海王星の影響を強く受けている事が判明した。現在、軌道長半径がこの天体より大きいと判明している天体はセドナと2012 VP113と2010 GB174のみである。 また太陽系外縁天体の中で2012 VP113とセドナの次に近日点が遠い天体である。
  • 2013 SY99, também conhecido como uo3L91, é um objeto do cinturão de Kuiper (OCK) descoberto pela Pesquisa de Origens do Sistema Solar Exterior usando o Telescópio Canadá-França-Havaí em setembro de 2013. Esse objeto orbita o Sol entre 50 e 1.300 UA (7,5 e 190 bilhões de quilômetros), e tem um período orbital baricêntrico de quase 20 mil anos. Tem os mais largos semieixos maiores a serem detectados para uma órbita com um periélio além da zona de forte influência de Netuno (q > 38), superando os semieixos maiores de Sedna, 2012 VP113 e 2010 GB174. 2013 SY99 tem o terceiro maior periélio de qualquer objeto transnetuniano extremo conhecido, atrás dos únicos sednoides conhecidos, Sedna (76 UA) e 2012 VP113 (80 UA).
  • 2013 SY99 (ранее известный как uo3L91) — малый объект пояса Койпера, замеченный на телескопе Канада-Франция-Гавайи в сентябре 2013 года. Официально об открытии объявлено 6 апреля 2017 года, тогда же ему присвоили официальное обозначение.
  • 2013 SY99, also known by its OSSOS survey designation uo3L91, is a trans-Neptunian object discovered on September 29, 2013 by the Outer Solar System Origins Survey using the Canada–France–Hawaii Telescope at Mauna Kea Observatory. This object orbits the Sun between 50 and 1,300 AU (7.5 and 190 billion km), and has a barycentric orbital period of nearly 20,000 years. It has the second largest semi-major axis yet detected for an orbit with a perihelion beyond the zone of strong influence of Neptune (q > 38), second only to 541132 Leleākūhonua, but exceeding the semi-major axes of Sedna, 2012 VP113 and 2010 GB174. 2013 SY99 has one of highest perihelion of any known extreme trans-Neptunian object, behind sednoids including Sedna (76 AU), 2012 VP113 (80 AU), and Leleākūhonua (65 AU).
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  • uo3L91
aphelion
  • Barycentric:
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  • #C2E0FF
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  • The orbits of and other detached objects, along with the hypothetical Planet Nine's orbit
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  • _w9N6yABAW4
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  • yes
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  • TNOdetached
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  • 9.972201600000001E7
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  • Barycentric:
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