Английская Википедия:13123 Tyson
Шаблон:Short description Шаблон:Infobox planet
13123 Tyson, provisional designation Шаблон:Mp, is a stony Phocaea asteroid and an asynchronous binary system from the inner regions of the asteroid belt, approximately 10 kilometers in diameter. It was discovered on May 16, 1994, by American astronomer Carolyn Shoemaker and Canadian astronomer David Levy at the Palomar Observatory in California, United States.[1] The asteroid was named for Neil deGrasse Tyson, American astrophysicist and popular science communicator.[2]
Orbit and classification
The stony S-type asteroid is a member of the Phocaea family (Шаблон:Small),[3] a rather small group of asteroids with similar orbital characteristics, named after its largest member, 25 Phocaea. It orbits the Sun in the inner main-belt at a distance of 1.7–3.0 AU once every 3 years and 8 months (1,324 days). Its orbit has an eccentricity of 0.27 and an inclination of 23° with respect to the ecliptic.[4] The first precovery was taken at Palomar's Digitized Sky Survey (DSS) in 1953, extending the asteroid's observation arc by 41 years prior to its discovery.[1]
Physical characteristics
Rotation period
In February 2015, a rotational lightcurve was obtained by astronomer Petr Pravec at the Astronomical Institute, Czech Republic. It showed a well-defined rotation period of Шаблон:Val hours with a brightness amplitude of 0.20 in magnitude (Шаблон:Small).[5]Шаблон:Efn A previous photometric observation in August 2009, at the Oakley Southern Sky Observatory, Australia, gave a lightcurve with a similar period of Шаблон:Val hours and a brightness variation of 0.35 magnitude (Шаблон:Small).[6]
Satellite
Tyson is an asynchronous binary asteroid, with a minor planet moon, designated Шаблон:Mp in its orbit. The satellite has a rotation period of 3.862 hours. No other physical properties for this binary system has been published.[5][7]Шаблон:Efn
Diameter and albedo
According to the survey carried out by NASA's space-based Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, the asteroid measures 10.9 kilometers in diameter and its surface has an albedo of 0.197,[8] while the Collaborative Asteroid Lightcurve Link assumes an albedo of 0.23 and calculates a smaller diameter of 8.2 kilometers with an absolute magnitude of 12.64.[9]
Naming
This minor planet was named in honor of American astrophysicist and popular science communicator, Neil deGrasse Tyson (b. 1958). In 1996, he became director of New York's Hayden Planetarium and was the chief scientist for its complete renovation. At the time, Tyson was also a research affiliate at Princeton University.[2] The official naming citation was published by the Minor Planet Center on 11 November 2000 (Шаблон:Small).[10]
Notes
References
External links
- SLA 2009 Conference Neil deGrasse Tyson, Keynote Speaker
- Asteroids with Satellites, Robert Johnston, johnstonsarchive.net
- 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 (10001)-(15000) – Minor Planet Center
- Шаблон:AstDys
- Шаблон:JPL small body
Шаблон:Use dmy dates Шаблон:Minor planets navigator Шаблон:Small Solar System bodies Шаблон:Neil deGrasse Tyson
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- Английская Википедия
- Phocaea asteroids
- Discoveries by Carolyn S. Shoemaker
- Discoveries by David H. Levy
- Named minor planets
- Neil deGrasse Tyson
- Astronomical objects discovered in 1994
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- Википедия
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