Английская Википедия:1216 Askania

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Шаблон:Infobox planet

1216 Askania, provisional designation Шаблон:Mp, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 9 kilometers in diameter. It was discovered on 29 January 1932, by German astronomer Karl Reinmuth at Heidelberg Observatory in southwest Germany.[1] It was named after the company Askania Werke, a German manufacturer of precision instruments.[2]

Orbit and classification

Askania orbits the Sun in the inner main-belt at a distance of 1.8–2.6 AU once every 3 years and 4 months (1,219 days). Its orbit has an eccentricity of 0.18 and an inclination of 8° with respect to the ecliptic.[3] The asteroid is a member of the Flora family, one of the largest families in the asteroid belt.[4]Шаблон:Efn Conversely, it is considered a background asteroid when applying the hierarchical clustering method to it proper orbital elements.[5]

The body's observation arc begins with its official discovery observation at Heidelberg in 1932. In July 1906, a first precovery was taken at the Lowell Observatory, and in April 1909, the asteroid was first identified at the discovering observatory as Шаблон:Mp.[1]

Naming

The minor planet was named after "Askania Werke AG", a manufacturer of optical and astronomical instruments in Berlin (also see Cinetheodolite).[3] The company went on to develop the auto pilot of the V-1 bomb in the following years.[6] The official naming citation was published by Paul Herget in The Names of the Minor Planets in 1955 (Шаблон:Small).[2]

Physical characteristics

In the Tholen classification, Askania is a common stony S-type asteroid.[3]

Lightcurves

Lightcurve observations of Askania at the Menke Observatory in July 2006, show a well-defined periodicity of Шаблон:Val hours, during which time the brightness of the body varies by Шаблон:Val magnitude (Шаблон:Small).[7]

Diameter and albedo

According to the surveys carried out by the Japanese Akari satellite, and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Askania measures between 7.21 and 10.533 kilometers in diameter and its surface has an albedo between 0.064 and 0.15.[8][9][10]

The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.24 – derived from 8 Flora, an stony asteroid and largest member and namesake of the Flora family – and calculates a diameter of 5.44 kilometers with an absolute magnitude of 13.49.[11]Шаблон:Efn

Notes

Шаблон:Notelist

References

Шаблон:Reflist

External links

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

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  1. ↑ 1,0 1,1 Ошибка цитирования Неверный тег <ref>; для сносок MPC-Askania не указан текст
  2. ↑ 2,0 2,1 Ошибка цитирования Неверный тег <ref>; для сносок springer не указан текст
  3. ↑ 3,0 3,1 3,2 Ошибка цитирования Неверный тег <ref>; для сносок jpldata не указан текст
  4. ↑ Ошибка цитирования Неверный тег <ref>; для сносок Alfven-1969 не указан текст
  5. ↑ Ошибка цитирования Неверный тег <ref>; для сносок AstDys-object не указан текст
  6. ↑ Ошибка цитирования Неверный тег <ref>; для сносок zaloga не указан текст
  7. ↑ Ошибка цитирования Неверный тег <ref>; для сносок Menke-2008a не указан текст
  8. ↑ Ошибка цитирования Неверный тег <ref>; для сносок Masiero-2012 не указан текст
  9. ↑ Ошибка цитирования Неверный тег <ref>; для сносок Nugent-2015 не указан текст
  10. ↑ Ошибка цитирования Неверный тег <ref>; для сносок AKARI не указан текст
  11. ↑ Ошибка цитирования Неверный тег <ref>; для сносок lcdb не указан текст
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