Английская Википедия:30 Urania
Шаблон:Short description Шаблон:Distinguish Шаблон:Use dmy dates Шаблон:Infobox planet
Urania (minor planet designation: 30 Urania) is a large main-belt asteroid that was discovered by English astronomer John Russell Hind on July 22, 1854.[1] It was his last asteroid discovery. This object is named after Urania, the Greek Muse of astronomy. Initial orbital elements for 30 Urania were published by Wilhelm Günther, an assistant at Breslau Observatory.[2] It is orbiting the Sun with a period of Шаблон:Convert and is spinning on its axis once every 13.7 hours.
Based upon its spectrum, this is classified as a stony S-type asteroid.[3] During 2000, speckle interferometry measurements from the Telescopio Nazionale Galileo in the Canary Islands were used to measure the apparent size and shape of 30 Urania. This gave cross-sectional dimensions equivalent to an ellipse with a length of 111 km and a width of 89 km, for a ratio of 0.80.[4]
References
External links
- Keck image of Urania (Marchis 2011 November 11)
- 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
- Discoveries by John Russell Hind
- Named minor planets
- S-type asteroids (Tholen)
- Sl-type asteroids (SMASS)
- Astronomical objects discovered in 1854
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- Википедия
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