Английская Википедия:2015 BP519
Шаблон:Short description Шаблон:Use dmy dates
Шаблон:Mp, nicknamed Caju,Шаблон:Efn is an extreme trans-Neptunian object from the scattered disc on a highly eccentric and inclined orbit in the outermost region of the Solar System.[1] It was first observed on 17 January 2015, by astronomers with the Dark Energy Survey at Cerro Tololo Observatory Шаблон:Obscode in Chile.[2][3] It has been described as an extended scattered disc object (ESDO),[4] and fits into the group of extreme objects that led to the prediction of Planet Nine, and has the highest orbital inclination of any of these objects.Шаблон:Efn
Orbit and classification
Шаблон:Mp orbits the Sun at a distance of 35.2–821 AU once every 8856 years (3,234,488 days; semi-major axis of 428 AU). Its orbit has an exceptionally high eccentricity of 0.92 and an inclination of 54° with respect to the ecliptic.[5] This makes it a probable outlier among the known extreme trans-Neptunian objects.[5][6]
Planet Nine
Шаблон:Mp fits into the group of extreme trans-Neptunian objects that originally led to the prediction of Planet Nine.Шаблон:EfnШаблон:Rp The group consists of more than a dozen bodies with a perihelion greater than 30 AU and a semi-major axis greater than 250 AU, with Шаблон:Mp having the highest orbital inclination of any of these objects.Шаблон:Efn Subsequently, unrefereed work by de la Fuente Marcos (2018) found that Шаблон:MpШаблон:'s current orbital orientation in space is not easily explained by the same mechanism that keeps other extreme trans-Neptunian objects together, suggesting that the clustering in its orbital angles cannot be attributed to Planet Nine's influence.[6] However, regardless of the current direction of its orbit, its high orbital inclination appears to fit into the class of high-semi major axis, high-inclination objects predicted by Batygin & Morbedelli (2017) to be generated by Planet Nine.
Numbering and naming
The body's observation arc begins with a precovery taken on 27 November 2014 by astronomers with the Dark Energy Survey using the DECam instrument of the Víctor M. Blanco Telescope at Cerro Tololo Inter-American Observatory in Chile.[3] Its discovery was reported in a paper published by Dark Energy Survey astronomers in 2018.[1]
Physical characteristics
According to Michael Brown and the Johnston's archive, Шаблон:Mp measures 524 and 584 kilometers in diameter based on an assumed albedo of 0.08 and 0.09, respectively.[4] As of 2018, no rotational lightcurve of has been obtained from photometric observations. The body's rotation period, pole and shape remain unknown.[5]
See also
Notes
References
External links
- Discovery and Dynamical Analysis of an Extreme Trans-Neptunian Object with a High Orbital Inclination, 14 May 2018
- A New World's Extraordinary Orbit Points to Planet Nine 15 May 2018
- Шаблон:AstDys
- Шаблон:JPL small body
Шаблон:2015 in space Шаблон:Trans-Neptunian objects Шаблон:Small Solar System bodies Шаблон:Authority control
- ↑ 1,0 1,1 Ошибка цитирования Неверный тег
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