Английская Википедия:9931 Herbhauptman

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Шаблон:Use dmy dates Шаблон:Infobox planet

9931 Herbhauptman, provisional designation Шаблон:Mp, is a stony Nysian asteroid from the inner regions of the asteroid belt, approximately Шаблон:Convert in diameter. It was discovered on 18 April 1985, by Czech astronomer Antonín Mrkos at the Kleť Observatory in former Czechoslovakia.[1] The S-type asteroid has a rotation period of 4.44 hours.[2] It was named after American mathematician and Nobel laureate Herbert A. Hauptman.[1]

Orbit and classification

Файл:AnimatedOrbitOf9931Herbhauptman.gif
Orbit of Herbhauptman (blue) with the inner planets and Jupiter in red

Herbhauptman is member of the Nysa family (Шаблон:Small),[3] one of the largest asteroid families.[4]

It orbits the Sun in the inner main-belt at a distance of 2.0–2.8 AU once every 3 years and 8 months (1,340 days; semi-major axis of 2.38 AU). Its orbit has an eccentricity of 0.18 and an inclination of 2° with respect to the ecliptic.[5] The body's observation arc begins with its first observations as Шаблон:Mp at Palomar Observatory in August 1982.[1]

Physical characteristics

Herbhauptman has been characterized as a stony S-type asteroid by Pan-STARRSШаблон:' survey.[2][6]

Rotation period

In 2014, two rotational lightcurves of Herbhauptman have been obtained from photometric observations in the R-band by astronomers at the Palomar Transient Factory in California.[7][8] Lightcurve analysis gave a rotation period of 4.438 and 4.44 hours with a brightness amplitude of 0.15 and 0.21 magnitude, respectively (Шаблон:Small).[2]

Diameter and albedo

According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Herbhauptman measures 5.179 kilometers in diameter and its surface has an albedo of 0.239,[9][10] while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for a stony asteroid of 0.20 and calculates a diameter of 4.54 kilometers based on an absolute magnitude of 14.08.[2]

Naming

This minor planet was named after American mathematician Herbert A. Hauptman (1917–2011), who was awarded with the Nobel Prize in Chemistry for developing direct methods for the determination of crystal structures in 1985.[1] The official naming citation was published by the Minor Planet Center on 28 September 2004 (Шаблон:Small).[11]

References

Шаблон:Reflist

External links

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

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  1. ↑ 1,0 1,1 1,2 1,3 Ошибка цитирования Неверный тег <ref>; для сносок MPC-object не указан текст
  2. ↑ 2,0 2,1 2,2 2,3 Ошибка цитирования Неверный тег <ref>; для сносок lcdb не указан текст
  3. ↑ Ошибка цитирования Неверный тег <ref>; для сносок Ferret не указан текст
  4. ↑ Ошибка цитирования Неверный тег <ref>; для сносок Nesvorny-2014 не указан текст
  5. ↑ Ошибка цитирования Неверный тег <ref>; для сносок jpldata не указан текст
  6. ↑ Ошибка цитирования Неверный тег <ref>; для сносок Veres-2015 не указан текст
  7. ↑ Ошибка цитирования Неверный тег <ref>; для сносок Waszczak-2015 не указан текст
  8. ↑ Ошибка цитирования Неверный тег <ref>; для сносок Chang-2015 не указан текст
  9. ↑ Ошибка цитирования Неверный тег <ref>; для сносок Masiero-2011 не указан текст
  10. ↑ Ошибка цитирования Неверный тег <ref>; для сносок WISE не указан текст
  11. ↑ Ошибка цитирования Неверный тег <ref>; для сносок MPC-Circulars-Archive не указан текст
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