Asteroids (asteroides – starlike objects) are small planets in the Solar System, most often irregularly shaped, with an average diameter of less than 1500 km. They are located mainly between the orbits of Mars and Jupiter. There are also other groups of asteroids in the solar system, such as the Greeks and Trojans, which are located near the libration points of the Sun-Jupiter system. Asteroids that cross the Earth’s orbit and approach the Sun have also been discovered. Another asteroid belt beyond the orbit of Neptune, called the Kuiper belt, has recently been discovered. Several hundred asteroids have already been discovered in this belt, among which there are ones larger than 1000 km.
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