Are small objects believed to have left since the beginning of the formation of the solar system 4.6 billion years ago, a rocky objects with round shapes or irregular shapes, spanning a distance of several hundred kilometers, but most small-sized enterprises.The asteroid belt is located in an area between Mars and Jupiter. The so-called main belt to distinguish it from Keiber Kuiper belt and the Oort Cloud. The dwarf planet Ceres Ceres is the largest objects in this belt where the mass alone almost 25% of the mass of the belt, and asteroids are the Palace and Hegih and Vista as well as Sears largest blocs, accounting for more than half a block this belt. Range belt asteroids sizes from Sears Ceres as the largest size the offense to grains such as dust particles.
And take most of the asteroids irregular shapes, but the wedding-cake takes almost spherical shape, fill drilling in most cases. The asteroid rotates in Ahljugih orbits around the sun, as it revolves around itself, irregular cycles.
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