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21062 Iasky
21062 Iasky (1991 JW1) is a main-belt asteroid discovered on May 13, 1991 by C. S. Shoemaker and E. M. Shoemaker at Palomar. In his 1994 book ''Pale Blue Dot'', Astronomer Carl Sagan speculated on the nature of 1991JW, saying it "has an orbit very much like the Earth's and is even easier to get to than 4660 Nereus. But its orbit seems ''too'' similar to the Earth's for it to be a natural object. Perhaps it's some lost upper stage of the ''Saturn V Apollo'' moon rocket.〔Sagan, Carl (1994). ''Pale Blue Dot: A Vision of the Human Future in Space.'' New York: Random House. p. 247. ISBN 0-345-37659-5.〕 == References ==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「21062 Iasky」の詳細全文を読む
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