Английская Википедия:167 Urda
Шаблон:Short description Шаблон:Infobox planet
Urda (minor planet designation: 167 Urda) is a main-belt asteroid that was discovered by German-American astronomer Christian Heinrich Friedrich Peters on August 28, 1876, in Clinton, New York, and named after Urd, one of the Norns in Norse mythology. In 1905, Austrian astronomer Johann Palisa showed that the asteroid varied in brightness.[1]
Photometric observations of this asteroid at the Palmer Divide Observatory in Colorado Springs, Colorado, during 2007–8 gave a light curve with a period of 13.06133 ± 0.00002 hours.[2] This S-type asteroid is a member of the Koronis family of asteroids that share similar orbital elements.[3]
In 2002, a diameter estimate of 37.93 ± 3.17 km was obtained from the Midcourse Space Experiment observations, with an albedo of 0.2523 ± 0.0448.[4]
A stellar occultation by Urda was observed from Japan on July 23, 2001.[5]
References
External links
- Lightcurve plot of 167 Urda, Palmer Divide Observatory, B. D. Warner (2007)
- 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:Use dmy dates Шаблон:Minor planets navigator Шаблон:Small Solar System bodies
- ↑ Ошибка цитирования Неверный тег
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<ref>; для сносокTedesco2002не указан текст - ↑ Шаблон:Cite web
- Английская Википедия
- Koronis asteroids
- Discoveries by Christian Peters
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- S-type asteroids (Tholen)
- Sk-type asteroids (SMASS)
- Astronomical objects discovered in 1876
- Objects observed by stellar occultation
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