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1747 Wright
1747 Wright, provisional designation 1947 NH, is a stony asteroid and a sizable Mars-crosser from the innermost regions of the asteroid belt, about 6 kilometers in diameter. It was discovered on July 14, 1947 by American astronomer Carl Wirtanen at Lick Observatory on Mount Hamilton near San Jose, California.〔
The S-type asteroid is classified as a AU and Sl-type in the respective Tholen and SMASS classification scheme. It the orbits the Sun at a distance of 1.5–1.9 AU once every 2 years and 3 months (816 days). Its orbit shows an eccentricity of 0.11 and is notably tilted by 21 degrees to the plane of the ecliptic. It has a well-define rotation period of 5.29 hours.〔〔〔〔 According to the surveys carried out by the Infrared Astronomical Satellite, IRAS, and the Japanese Akari satellite, it has a geometric albedo of 0.20 and 0.32, respectively.〔〔
The minor planet was named in memory of American astronomer William Hammond Wright (1871–1959), staff member and later director of the Lick Observatory until 1942. He was a pioneer in astrophysics with his last project being the design and construction of the ''20-inch Carnegie double astrograph'' for the proper motion program he initiated. As a by-product several discoveries of asteroids and comets were made. He is also honored by the Martian and lunar craters ''Wright''.〔
== 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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