Английская Википедия:4647 Syuji
Шаблон:Use dmy dates Шаблон:Infobox planet
4647 Syuji, provisional designation Шаблон:Mp, is a dark background asteroid from the outer regions of the asteroid belt, approximately Шаблон:Convert in diameter. It was discovered on 9 October 1931, by German astronomer Karl Reinmuth at the Heidelberg Observatory in southwest Germany. The likely carbonaceous asteroid was named for Japanese astronomer Shuji Hayakawa.[1]
Orbit and classification
Syuji is a non-family asteroid from the main belt's background population.[2] It orbits the Sun in the outer main-belt at a distance of 2.1–3.6 AU once every 4 years and 11 months (1,795 days; semi-major axis of 2.89 AU). Its orbit has an eccentricity of 0.26 and an inclination of 7° with respect to the ecliptic.[3] The body's observation arc begins at Heidelberg on 17 October 1931, or eight nights after its official discovery observation.[1] orbital read
Physical characteristics
Syuji has an absolute magnitude of 12.8.[3] Based on the body's albedo (see below) and its location in the asteroid belt, it is likely a carbonaceous asteroid. As of 2018, no rotational lightcurve of Syuji has been obtained from photometric observations. The body's rotation period, pole and shape remain unknown.[3]
Diameter and albedo
According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Syuji measures 13.864 kilometers in diameter and its surface has an albedo of 0.063.[4]
Naming
This minor planet was named after Japanese astronomer Shuji Hayakawa (born 1958; first name also spelled "Syuji" or "Shūji"), an observer of comets and discoverer of minor planets at the Okutama Observatory Шаблон:Obscode in Okutama, west of Tokyo.[1] The official naming was proposed by Takao Kobayashi and the citation was published by the Minor Planet Center on 25 May 1994 (Шаблон:Small).[5]
References
External links
- Dictionary of Minor Planet Names, Google books
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – 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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<ref>; для сносокMPC-Circulars-Archiveне указан текст
- Английская Википедия
- Background asteroids
- Discoveries by Karl Wilhelm Reinmuth
- Named minor planets
- Astronomical objects discovered in 1931
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