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1660 Wood
1660 Wood, provisional designation 1953 GA, is a stony asteroid from the inner regions of the asteroid belt, about 12 kilometers in diameter. It was discovered on 7 April 1953 by South African astronomer Jacobus Albertus Bruwer at Union Observatory in Johannesburg.〔
The S-type asteroid is a member of the Phocaea family. It orbits the Sun at a distance of 1.7–3.1 AU once every 3.71 years (1,354 days). Its orbit shows an eccentricity of 0.30 and is tilted by 21 degrees to the plane of the ecliptic. It has an albedo of 0.23, as measured by the WISE/NEOWISE mission.〔 Photometric observations precisely determined that the body takes 6.81 hours to rotate once around its axis.〔〔〔
The asteroid was named after British–South African astronomer Harry Edwin Wood (1881–1946), who was the second director of the Union Observatory at which the asteroid was discovered, and who had discovered 12 asteroids himself between 1911 and 1928. He had the prime responsibility for the famous ''Franklin-Adams Star Camera'' (Franklin-Adams photographic refractor) since its acquisition in 1909 ''(also see 1925 Franklin-Adams)''.〔
1660 Wood was the second numbered discovery of astronomer Jacobus Bruwer. In addition, he also discovered the minor planets 1658 Innes, 1794 Finsen, and 3284 Niebuhr. The asteroid 1811 Bruwer was named in his honour by the Dutch, Dutch-American astronomer trio of the Palomar–Leiden survey.〔
== 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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