6174 Polybius
Near-Earth Object, Small Solar System Body, Centaur (Minor Planet), Kuiper Belt
978-613-7-97504-6
6137975045
108
2011-08-26
39.00 €
eng
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6174 Polybius (1983 TR2) is a main-belt asteroid discovered on October 4, 1983 by N. G. Thomas at Flagstaff. Asteroids (from Greek ἀστήρ 'star' and εἶδος 'like, in form') are a class of small Solar System bodies in orbit around the Sun. They have also been called planetoids, especially the larger ones. These terms have historically been applied to any astronomical object orbiting the Sun that did not show the disk of a planet and was not observed to have the characteristics of an active comet, but as small objects in the outer Solar System were discovered, their volatile-based surfaces were found to more closely resemble comets, and so were often distinguished from traditional asteroids.
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