Английская Википедия:385571 Otrera

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Шаблон:Short description Шаблон:Use dmy dates Шаблон:Infobox planet

385571 Otrera, provisional designation Шаблон:Mp, is a Neptune trojan leading Neptune's orbit in the outer Solar System. It was discovered by American astronomers Scott Sheppard and Chad Trujillo at Las Campanas Observatory on 16 October 2004.[1] It measures approximately 100 kilometers in diameter and was the second such body to be discovered after Шаблон:Mpl.[2]

Orbit and classification

Neptune trojans are resonant trans-Neptunian objects in a 1:1 mean-motion orbital resonance with Neptune. These Trojans have a semi-major axis and an orbital period very similar to Neptune's (30.10 AU; 164.8 years).

Otrera belongs to the Шаблон:L4 group, which leads 60° ahead Neptune's orbit. It orbits the Sun with a semi-major axis of 30.027 AU at a distance of 29.3–30.7 AU once every 164 years and 6 months (60,099 days). Its orbit has an eccentricity of 0.02 and an inclination of 1° with respect to the ecliptic.[3]

Physical characteristics

The discoverers estimate that the body has a mean-diameter of 100 kilometers based on a magnitude of 23.3.[4] Based on a generic magnitude-to-diameter conversion, it measures approximately 74 kilometers in diameter using an absolute magnitude of 8.8 and an assumed albedo of 0.10.[5]

Naming

This minor planet was the first Neptune trojan to be named in November 2015. It was named after Otrera, the first Amazonian queen in Greek mythology.[1] The naming scheme is to name these objects after figures related to the Amazons, which was an all-female warrior tribe that fought in the Trojan War on the side of the Trojans against the Greeks.[6]

References

Шаблон:Reflist

External links

Шаблон:Neptunetrojans Footer Шаблон:Minor planets navigator Шаблон:Small Solar System bodies Шаблон:Authority control

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  1. ↑ 1,0 1,1 Ошибка цитирования Неверный тег <ref>; для сносок MPC-Otrera не указан текст
  2. ↑ Ошибка цитирования Неверный тег <ref>; для сносок MPC-NeptuneTrojans не указан текст
  3. ↑ Ошибка цитирования Неверный тег <ref>; для сносок jpldata не указан текст
  4. ↑ Ошибка цитирования Неверный тег <ref>; для сносок Planetary-Society не указан текст
  5. ↑ Ошибка цитирования Неверный тег <ref>; для сносок h не указан текст
  6. ↑ Шаблон:Cite web
Источник — http://wikihandbk.com/ruwiki/index.php?title=Английская_Википедия:385571_Otrera&oldid=12849311