Английская Википедия:Fenrir (moon)

Материал из Онлайн справочника
Перейти к навигацииПерейти к поиску

Шаблон:Short description Шаблон:Infobox planet

Fenrir Шаблон:IPAc-en, or Saturn XLI (provisional designation S/2004 S 16), is a natural satellite of Saturn. Its discovery was announced by Scott S. Sheppard, David C. Jewitt, Jan Kleyna, and Brian G. Marsden on May 4, 2005, from observations taken between December 13, 2004, and March 5, 2005. Fenrir has an apparent magnitude of 25,[1] making it one of the faintest known moons in the Solar System, and was discovered using some of the largest telescopes in the world.[2] It is even too dark to have been observed by the Cassini spacecraft when it was in orbit around Saturn, for which it never got brighter than approximately 17th apparent magnitude.[3] Fenrir was named after Fenrisulfr, a giant wolf from Norse mythology, father of Hati and Skoll, son of Loki, destined to break its bonds for Ragnarök.

Fenrir is about 4 kilometres in diameter,[1] and orbits Saturn at an average distance of 22,454 Mm in 1260 days, at an inclination of 163° to the ecliptic (143° to Saturn's equator) with an eccentricity of 0.136. The Fenrian orbit is retrograde: it orbits Saturn in a direction opposite to the planet's spin, suggesting that this irregular moon was captured by Saturn.[4]

Notes


References

Шаблон:Reflist

External links

Шаблон:Saturn Шаблон:Solar System moons (compact) Шаблон:Moons of Saturn

  1. 1,0 1,1 Шаблон:Cite web
  2. Ошибка цитирования Неверный тег <ref>; для сносок iauc8523 не указан текст
  3. Шаблон:Cite web
  4. Шаблон:Cite web