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1853 McElroy
1853 McElroy, provisional designation 1957 XE, is a carbonaceous asteroid from the outer region of the asteroid belt, about 21 kilometers in diameter. It was discovered on December 15, 1957 by the Indiana Asteroid Program at Goethe Link Observatory near Brooklyn in the U.S. state of Indiana.〔
The asteroid orbits the Sun at a distance of 2.9–3.2 AU once every 5 years and 4 months (1,960 days). It has a rotation period of 8.016 hours.〔〔 Its orbit is tilted by 16 degrees to the ecliptic. The geometric albedo of the C-type asteroid lies in between 0.19 and 0.30, as measured by IRAS, WISE/NEOWISE and AKARI surveys. The Light Curve Database project derived an albedo of 0.1937 lower than any other published figure.〔
It was named in honor of American biochemist William David McElroy (1917–1999), chairman of the biology department at Johns Hopkins University during the 1950s and 1960s, later director of the National Science Foundation (NSF) in the early 1970s and chancellor of the University of California at San Diego from until 1980. During his tenure as director of NSF the U.S. government decided to fund the Very Large Array, now officially known as the ''Karl G. Jansky Very Large Array''.〔
== 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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