Английская Википедия:(15874) 1996 TL66
Шаблон:Mp, provisional designation Шаблон:Mp, is a trans-Neptunian object of the scattered disc orbiting in the outermost region of the Solar System.[1][2]
The Spitzer Space Telescope has estimated this object to be about Шаблон:Convert in diameter,[3] but 2012 estimates from the Herschel Space Observatory estimate the diameter as closer to Шаблон:Convert.[4] It is not a detached object, since its perihelion (closest approach to the Sun) is under the influence of Neptune.[2] Light-curve-amplitude analysis suggests that it is a spheroid.[5] Tancredi presents "in the form of a decision tree, the set of questions to be considered in order to classify an object as an icy 'dwarf planet'." They find that Шаблон:Mp is very probably a dwarf planet.[6] Mike Brown's website, using a radiometrically determined diameter of Шаблон:Convert, lists it as a possible dwarf planet.[7]
Discovery
Discovered in 1996 by David C. Jewitt et al., it was the first object to be categorized as a scattered-disk object (SDO), although Шаблон:Mpl, discovered a year earlier, was later recognised as a scattered-disk object. It was considered one the largest known trans-Neptunian objects at the time of the discovery, being placed second after Pluto.[8] It came to perihelion in 2001.[1]
Orbit and size
Шаблон:Mp orbits the Sun with a semi-major axis of 83.9 AU[1] but is currently only 35 AU from the Sun with an apparent magnitude of 21.[9] In 2007, the Spitzer Space Telescope estimated it to have a low albedo with a diameter of about Шаблон:Val.[3] More-recent measurements in 2012 by the 'TNOs are Cool' research project and reanalysis of older data have resulted in a new estimate of these figures.[4] It is now assumed that it has a higher albedo and the diameter was revised downward to Шаблон:Val. Light-curve-amplitude analysis shows only small deviations, suggesting Шаблон:Mp is a spheroid with small albedo spots and may be a dwarf planet.[5]
References
External links
- Шаблон:Mp – A New Type of Transneptunian Object, MPC news release
- Шаблон:Mp – A Newly Discovered Planetesimal
- Our Solar System Is Getting Crowded, Science Magazine
- Шаблон:Mp – A New Dynamical Class in the Outer Solar System, David Jewitt's Kuiper Belt website
- Lists and Plots: Minor Planets
- Шаблон:JPL small body
Шаблон:Minor planets navigator Шаблон:Small Solar System bodies Шаблон:Dwarf planets Шаблон:Trans-Neptunian objects
- ↑ 1,0 1,1 1,2 Ошибка цитирования Неверный тег
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<ref>; для сносокBuieне указан текст - ↑ 3,0 3,1 Ошибка цитирования Неверный тег
<ref>; для сносокspitzerне указан текст - ↑ 4,0 4,1 Ошибка цитирования Неверный тег
<ref>; для сносокTNOsCool4не указан текст - ↑ 5,0 5,1 Tancredi, G., & Favre, S. (2008) Which are the dwarfs in the Solar System?. Depto. Astronomía, Fac. Ciencias, Montevideo, Uruguay; Observatorio Astronómico Los Molinos, MEC, Uruguay. Retrieved 10-08-2011
- ↑ Шаблон:Cite journal
- ↑ Шаблон:Cite web
- ↑ Ошибка цитирования Неверный тег
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<ref>; для сносокAstDysне указан текст
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