Deep in the dark, frigid expanse of the outer solar system, Farfarout slowly orbits the distant Sun, taking 1,000 years to complete each lonely orbit. First discovered in 1997 by astronomers at the Subaru eight-meter telescope on Maunakea in Hawaii, details of this frozen world are just now being revealed. Astronomers Scott Sheppard of the Carnegie Institution for Science, David Tholen from the University of Hawaii, and Chad Trujillo from Northern Arizona University have measured just how far out Farfarout is — about 132 astronomical units (AUs) from the Sun. (One AU is the distance between the Earth and Sun-…
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