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3554 Amun
3554 Amun is an M-type Aten asteroid (meaning it crosses Earth's orbit) and a Venus-crosser. It was discovered on 4 March 1986 by Carolyn and Eugene Shoemaker at Mount Palomar Observatory. Its estimated diameter is 2.48 kilometers, making it one of the smallest known M-type asteroids. Amun was the fifth Aten asteroid to be numbered. Amun was once considered metallic, based on its M-type spectrum. In ''Mining the Sky'', planetary scientist John S. Lewis calculated the value of 3554 Amun at $20 trillion.〔(Book Review: Mining the Sky )〕 (6178) 1986 DA is another M-type near-Earth asteroid with lower inclination that is actually metallic. Amun passes closest to Venus, and in 1964, 2034, and 2103 comes within 10 Gm of it.〔 ==References==
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