Английская Википедия:1851 Lacroute
1851 Lacroute, provisional designation Шаблон:Mp, is an asteroid from the outer region of the asteroid belt, approximately 17 kilometers in diameter.
It was discovered on 9 November 1950, by French astronomer Louis Boyer at the Algiers Observatory in the capital of Algeria, Northern Africa, and named after French astronomer Pierre Lacroute.[1][2]
Orbit and classification
Lacroute orbits the Sun in the outer main-belt at a distance of 2.5–3.7 AU once every 5 years and 6 months (1,996 days). Its orbit has an eccentricity of 0.19 and an inclination of 2° with respect to the ecliptic.[3] As no precoveries were taken, and no prior identifications were made, the body's observation arc begins with its official discovery observation in 1950.[2]
Physical characteristics
According to the surveys carried out by the Infrared Astronomical Satellite (IRAS) and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Lacroute measures 16.9 and 18.2 kilometers in diameter, and its surface has an albedo of 0.049 and 0.074, respectively.[4][5] As of 2016, the body's spectral type, as well as its rotation period and shape remain unknown.[3][6]
Naming
This minor planet was named in honor of French astronomer Pierre Lacroute (1906–1993), a known astrometrist, president of IAU's Commission 24 in the 1970s, and director of the Observatory of Strasbourg, instrumental in the establishment of the Stellar Data Center (also see SIMBAD).[1]
Lacroute also made an independent reduction of the astrometric star catalogue AGK3, using a technique involving overlapping photographic plates.[1] The official Шаблон:MoMP was published by the Minor Planet Center on 1 August 1978 (Шаблон:Small).[7]
References
External links
- 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
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- Английская Википедия
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- Discoveries by Louis Boyer (astronomer)
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- Astronomical objects discovered in 1950
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