Английская Википедия:221 Eos
Шаблон:Short description Шаблон:Infobox planet
Eos (minor planet designation: 221 Eos) is a large main-belt asteroid that was discovered by Austrian astronomer Johann Palisa on January 18, 1882, in Vienna. In 1884, it was named after Eos, the Greek goddess of the dawn, to honour the opening of a new observatory that was hoped to bring about a new dawn for Viennese astronomy.[1]
The asteroid is orbiting the Sun with a semimajor axis of Шаблон:Val, a period of 5.22 years, and an eccentricity of 0.1. The orbital plane is inclined by 10.9° to the plane of the ecliptic. It has a mean cross-section of 104 km,[2] and is spinning with a rotation period of 10.4 hours. Based upon its spectral characteristics, this object is classified as a K-type asteroid. The orbital properties show it to be a member of the extensive Eos asteroid family, which is named after it.[3] The spectral properties of the asteroid suggest it may have come from a partially differentiated parent body.[4]
References
External links
- The Asteroid Orbital Elements Database
- Minor Planet Discovery Circumstances
- Asteroid Lightcurve Data File
- Шаблон:AstDys
- Шаблон:JPL small body
Шаблон:Minor planets navigator Шаблон:Small Solar System bodies Шаблон:Authority control
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- Английская Википедия
- Eos asteroids
- Discoveries by Johann Palisa
- Named minor planets
- S-type asteroids (Tholen)
- Eos
- K-type asteroids (SMASS)
- Astronomical objects discovered in 1882
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- Страницы с телепортом
- Википедия
- Статья из Википедии
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