Английская Википедия:2311 El Leoncito
Шаблон:Use dmy dates Шаблон:Infobox planet
2311 El Leoncito, provisional designation Шаблон:Mp, is a dark and reddish asteroid from the outer region of the asteroid belt, approximately 53 kilometers in diameter. The asteroid was discovered by astronomers at Félix Aguilar Observatory at the Leoncito Astronomical Complex in Argentina on 10 October 1974.[1] It was later named after the discovering site.
Orbit and classification
El Leoncito orbits the Sun in the outer main-belt at a distance of 3.5–3.8 AU once every 6 years and 11 months (2,533 days). Its orbit has an eccentricity of 0.04 and an inclination of 7° with respect to the ecliptic.[2]
It has a well-observed orbit with the lowest possible uncertainty – a condition code of 0 – and an observation arc that spans over a period of almost half a century, using precovery images on photographic plates from 1972.
Physical characteristics
El Leoncito is characterized as a D-type asteroid in the Tholen taxonomy, one of only 46 known asteroids of this spectral type.[3]
The body has a low albedo of 0.04, typical for D-type asteroids.[3] Its rotation period, however, remains unknown.[2]
Naming
This minor planet derives its name from the Spanish name of the discovering astronomical complex of observatories, the Complejo Astronómico El Leoncito (CASLEO).[4] The official naming citation was published by the Minor Planet Center on 22 September 1983 (Шаблон:Small).[5]
References
External links
- Asteroid Lightcurve Database (LCDB), query form (info Шаблон:Webarchive)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- Шаблон:AstDys
- Шаблон:JPL small body
Шаблон:Minor planets navigator Шаблон:Small Solar System bodies Шаблон:Authority control
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- Английская Википедия
- Background asteroids
- Cybele asteroids
- Discoveries by the Félix Aguilar Observatory
- Named minor planets
- D-type asteroids (Tholen)
- Astronomical objects discovered in 1974
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- Страницы с телепортом
- Википедия
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- Статья из Английской Википедии
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