Английская Википедия:1633 Chimay
1633 Chimay, provisional designation Шаблон:Mp, is a Themistian asteroid from the outer region of the asteroid belt, approximately 37 kilometers in diameter.
It was discovered on 3 March 1929, by Belgian astronomer Sylvain Arend at the Royal Observatory of Belgium in Uccle.[1] Five nights later, the body was independently discovered by Max Wolf at Heidelberg Observatory in southern Germany.[2] It was later named for the Belgian town of Chimay.[2]
Classification and orbit
Chimay is a member of the Themis family, a dynamical family of asteroids with nearly coplanar ecliptical orbits. It orbits the Sun in the outer main-belt at a distance of 2.8–3.6 AU once every 5 years and 9 months (2,085 days). Its orbit has an eccentricity of 0.12 and an inclination of 3° with respect to the ecliptic.[3] Chimay was first identified as Шаблон:Mp at Heidelberg in 1917, extending the body's observation arc by 12 years prior to its official discovery observation.[1]
Physical characteristics
Several rotational lightcurves were obtained from photometric observations. Lightcurve analysis gave a well-defined, concurring rotation period of 6.58–6.63 hours with a brightness variation between 0.31 and 0.58 magnitude (Шаблон:Small).[4][5][6][7][8]
According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Chimay measures between 36.1 and 37.7 kilometers in diameter, and its surface has a low albedo between 0.079 and 0.089.[9][10][11][12] In accordance with the space-based surveys, the Collaborative Asteroid Lightcurve Link (CALL) derives an albedo of 0.078, and calculates a diameter of 36.1 kilometers. CALL also classifies Chimay as a S-type rather than a carbonaceous C-type asteroid.[13]
Naming
This minor planet was named after the Belgian town Chimay, home of the discoverer, who also co-discovered Comet Arend–Roland.[2] The official Шаблон:MoMP was published by the Minor Planet Center on 20 February 1976 (Шаблон:Small).[14]
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 Sylvain Arend
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- Astronomical objects discovered in 1929
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