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1915 Quetzalcóatl
1915 Quetzalcóatl, provisional designation 1953 EA, is a very eccentric, stony asteroid classified as Near-Earth object, about half a kilometer in diameter. It was discovered by American astronomer Albert Wilson at Palomar Observatory, California on March 9, 1953.〔
The asteroid is an Amor asteroid – a subgroup of near-Earth asteroids that approach the orbit of Earth from beyond, but do not cross it – and a member of the Alinda family of highly eccentric asteroids. Its Earth ''Minimum orbit intersection distance'' (MOID) is 0.11 AU and on February 24, 2062, it will make a close approach and pass by Earth at a distance of .〔
Classified as a SMU-subtype in the Tholen taxonomy, the S-type asteroid orbits the Sun at a distance of 1.1–4.0 AU once every 4 years and 1 month (1,483 days). Its orbit is highly eccentric (0.57) and notably tilted by 20 degrees to the plane of the ecliptic. It has a rotation period of 4.9 hours〔 and an albedo of 0.21–0.31.〔 In 1981, this object was observed with radar from the Arecibo Observatory at a distance of 0.09 AU. The measured radar cross-section was 0.02 km2.〔
It is named after the "feathered serpent" Quetzalcoatl, the Mesoamerican deity of wisdom and culture who brought learning to the Toltec people.〔
== 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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