Английская Википедия:9641 Demazière
Шаблон:Short description Шаблон:Use dmy dates Шаблон:Infobox planet
9641 Demazière, provisional designation Шаблон:Mp, is a stony asteroid from the inner regions of the asteroid belt, approximately 3 kilometers in diameter. It was discovered by Belgian astronomer Eric Elst at ESO's La Silla Observatory site in northern Chile on 12 August 1994.[1] The asteroid was named for Belgian scientist Martine De Mazière.[2]
Orbit and classification
Demazière orbits the Sun in the inner main-belt at a distance of 2.1–2.8 AU once every 3 years and 10 months (1,403 days). Its orbit has an eccentricity of 0.13 and an inclination of 5° with respect to the ecliptic.[3] A first precovery was obtained by the Steward Observatory at Kitt Peak in 1991, extending the body's observation arc by 3 years prior to its official discovery observation at La Silla.[1]
Physical characteristics
Demazière has been characterized as a V-type asteroid by Pan-STARRS photometric survey.[4]
Lightcurves
In November 2010, a rotational lightcurve of Demazière was obtained from photometric observations taken at the Palomar Transient Factory in California. It gave a rotation period of Шаблон:Val hours with a brightness amplitude of 0.9 magnitude (Шаблон:Small).[5]
Diameter and albedo
The Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 2.7 kilometers with an absolute magnitude of 15.2.[6]
Naming
This minor planet was named in honor of Belgian scientist Martine De Mazière (born 1960), director-general at the Belgian Institute for Space Aeronomy as of 2016.[7] Working with the optical scanning of Earth's atmosphere, her research focuses on the effect of aerosols in the atmosphere's composition. Mazière has also assessed the post-Pinatubo NO2 reduction and recovery, using spectroscopic observations in the UV and visible made at the Swiss Sphinx Observatory (Jungfraujoch) over a period of 10 years.[2]
The approved naming citation was published by the Minor Planet Center on 4 May 1999 (Шаблон:Small).[8]
References
External links
- Martine De Mazière, Belgian Institute for Space Space Aeronomy, Brussels, Belgium (at ResearchGate)
- BIRA-IASB, Royal Belgian Institute for Space Aeronomy
- 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 (5001)-(10000) – 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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- Discoveries by Eric Walter Elst
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