Английская Википедия:1680 Per Brahe

Материал из Онлайн справочника
Перейти к навигацииПерейти к поиску

Шаблон:Short description Шаблон:Infobox planet

1680 Per Brahe, provisional designation Шаблон:Mp, is a bright background asteroid from the central region of the asteroid belt, approximately Шаблон:Convert in diameter. It was discovered on 12 February 1942, by Finnish astronomer Liisi Oterma at Turku Observatory in Southwest Finland.[1] The stony S-type asteroid has a rotation period of 3.4 hours.[2] It is named after Swedish count and governor Per Brahe the Younger.[3]

Orbit and classification

The S-type asteroid is a non-family asteroid of the main belt's background population.[4] It orbits the Sun in the central main-belt at a distance of 2.2–3.2 AU once every 4 years and 6 months (1,643 days; semi-major axis of 2.73 AU). Its orbit has an eccentricity of 0.18 and an inclination of 4° with respect to the ecliptic.[5] Per Brahe was first identified as Шаблон:Mp at Heidelberg Observatory in 1902, extending the asteroid's observation arc by 40 years prior to its official discovery observation.[1]

Naming

This minor planet was named for Swedish count Per Brahe (1602–1680), who was Governor General of Finland in the 17th century. His prosperous legacy saw the establishment of Academia Aboensis, the first university in Finland, the construction of various new towns and many schools, and the publication of the first Finnish Bible.[3] The official Шаблон:MoMP was published by the Minor Planet Center on 1 April 1980 (Шаблон:Small).[6]

Physical characteristics

Lightcurve

In December 2012, two rotational lightcurves of Per Brahe were obtained by American astronomers Robert Stephens and Brian Warner. They gave a well-defined rotation period of 3.426 and 3.428 hours with a brightness variation of 0.13 and 0.017 magnitude, respectively (Шаблон:Small).[2][7] Previously, lightcurves obtained by Laurent Bernasconi and René Roy in 2005 and 2006, gave a similar period of 3.444 and 3.44 hours, respectively.(Шаблон:Small).[8]

Diameter and albedo

According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Per Brahe measures between 13.96 and 18.29 kilometers in diameter, and its surface has an albedo between 0.178 and 0.300.[9][10][11][12][13] The Collaborative Asteroid Lightcurve Link derives a higher albedo of 0.341 and a diameter of 14.36 kilometers with an absolute magnitude of 11.0.[2]

References

Шаблон:Reflist

External links

Шаблон:Use dmy dates Шаблон:Minor planets navigator Шаблон:Small Solar System bodies

Партнерские ресурсы
Криптовалюты
Магазины
Хостинг
Разное

  1. ↑ 1,0 1,1 Ошибка цитирования Неверный тег <ref>; для сносок MPC-object не указан текст
  2. ↑ 2,0 2,1 2,2 Ошибка цитирования Неверный тег <ref>; для сносок lcdb не указан текст
  3. ↑ 3,0 3,1 Ошибка цитирования Неверный тег <ref>; для сносок springer не указан текст
  4. ↑ Ошибка цитирования Неверный тег <ref>; для сносок AstDys-object не указан текст
  5. ↑ Ошибка цитирования Неверный тег <ref>; для сносок jpldata не указан текст
  6. ↑ Ошибка цитирования Неверный тег <ref>; для сносок MPC-Circulars-Archive не указан текст
  7. ↑ Ошибка цитирования Неверный тег <ref>; для сносок Stephens-2013d не указан текст
  8. ↑ Ошибка цитирования Неверный тег <ref>; для сносок geneva-obs не указан текст
  9. ↑ Ошибка цитирования Неверный тег <ref>; для сносок Masiero-2014 не указан текст
  10. ↑ Ошибка цитирования Неверный тег <ref>; для сносок SIMPS не указан текст
  11. ↑ Ошибка цитирования Неверный тег <ref>; для сносок WISE не указан текст
  12. ↑ Ошибка цитирования Неверный тег <ref>; для сносок Masiero-2012 не указан текст
  13. ↑ Ошибка цитирования Неверный тег <ref>; для сносок AKARI не указан текст
Источник — http://wikihandbk.com/ruwiki/index.php?title=Английская_Википедия:1680_Per_Brahe&oldid=12496498