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 5th Aten asteroid to be numbered.Amun was once considered metallic based on its M-type spectrum. In Mining the Sky planetary scientist John S.
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