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1597 Laugier
1597 Laugier, provisional designation 1949 EB, is an asteroid from the outer region of the asteroid belt. It was discovered by French astronomer Louis Boyer at the north African Algiers Observatory in Algeria, on 7 March 1949.〔
The asteroid orbits the Sun at a distance of 2.6–3.1 AU once every 4 years and 10 months (1,752 days). Its orbit shows an eccentricity of 0.09 and is tilted by 12 degrees to the plane of the ecliptic.〔
Little is known about the asteroids size, composition, albedo and rotation, despite having a well-observed orbit with the lowest possible uncertainty – which is denoted by a condition code of 0 – and an observation arc that spans over a period of more than 60 years.〔 With an absolute magnitude of 11.7, the asteroid's diameter could be anywhere between 12 and 30 kilometers for an assumed albedo in the range of 0.05–0.25 ''(see NASA's conversion table)''.〔 Since outer main-belt asteroids typically have a spectral type of a darker carbonaceous, rather than a brighter rocky body, its true diameter may be at the upper end of NASA's generic conversion table, as an object's diameter increases, when its albedo decreases, for a given absolute magnitude.〔
The minor planet was probably named after French astronomer and asteroid discoverer Marguerite Laugier (1896–1976), but possibly (also) after French astronomer Paul Auguste Ernest Laugier (1812–1872).〔
== References ==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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