Английская Википедия:1174 Marmara

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Шаблон:Short description Шаблон:Infobox planet

1174 Marmara, provisional designation Шаблон:Mp, is a stony Eoan asteroid from the outer regions of the asteroid belt, approximately 17 kilometers in diameter. It was discovered on 17 October 1930, by German astronomer Karl Reinmuth at Heidelberg Observatory in southwest Germany.[1] The asteroid was later named after the Sea of Marmara, located between Europe and Asia.[2]

Classification and orbit

Marmara belongs to the Eos family (Шаблон:Small), the largest asteroid family of the outer main-belt consisting of nearly 10,000 known members.[3][4][5]Шаблон:Rp

It orbits the Sun at a distance of 2.7–3.4 AU once every 5 years and 3 months (1,925 days). Its orbit has an eccentricity of 0.11 and an inclination of 10° with respect to the ecliptic.[6] The asteroid's observation arc begins with its official discovery observation at Heidelberg.[1]

Physical characteristics

Marmara is an assumed S-type asteroid,[3] while Eoan asteroids are typically characterized as K-type asteroids.[5]Шаблон:Rp

Lightcurves

Published in 2004, a rotational lightcurve of Marmara was obtained from photometric observations by South American astronomers from Brazil and Argentina. Lightcurve analysis gave a rotation period of 12 hours with a brightness amplitude of 0.2 magnitude (Шаблон:Small).[7]

Diameter and albedo

According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Marmara measures between 16.21 and 18.496 kilometers in diameter and its surface has an albedo between 0.0821 and 0.15.[8][9][10][11][12][13] The Collaborative Asteroid Lightcurve Link derives a higher albedo of 0.1795 and a diameter of 16.46 kilometers based on an absolute magnitude of 11.4.[3]

Naming

This minor planet was named by the discoverer after the Sea of Marmara, which lies in between the Black Sea and the Aegean Sea, connected by the Bosporus and the Dardanelles straits, respectively.[2] The official naming citation was published in Paul Herget's The Names of the Minor Planets in 1955 (Шаблон:Small).[2]

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-Marmara не указан текст
  2. ↑ 2,0 2,1 2,2 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 lcdb не указан текст
  4. ↑ Ошибка цитирования Неверный тег <ref>; для сносок Ferret не указан текст
  5. ↑ 5,0 5,1 Ошибка цитирования Неверный тег <ref>; для сносок Nesvorny-2014 не указан текст
  6. ↑ Ошибка цитирования Неверный тег <ref>; для сносок jpldata не указан текст
  7. ↑ Ошибка цитирования Неверный тег <ref>; для сносок Alvarez-2004 не указан текст
  8. ↑ Ошибка цитирования Неверный тег <ref>; для сносок SIMPS не указан текст
  9. ↑ Ошибка цитирования Неверный тег <ref>; для сносок Nugent-2016 не указан текст
  10. ↑ Ошибка цитирования Неверный тег <ref>; для сносок AKARI не указан текст
  11. ↑ Ошибка цитирования Неверный тег <ref>; для сносок Nugent-2015 не указан текст
  12. ↑ Ошибка цитирования Неверный тег <ref>; для сносок Masiero-2014 не указан текст
  13. ↑ Ошибка цитирования Неверный тег <ref>; для сносок WISE не указан текст
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