Identify and describe the 3 main categories of trans-Neptunian objects.

The three main categories of trans-Neptunian objects are Planetoids, the Kuiper Belt, and the Oort cloud. Planetoids are dwarf or minor planets, natural satellites, and minor bodies. Planetoids are asteroids. The kuiper belt is a region with icy and rocky objects just beyond the orbit of Neptune which are called Planetoids. Another term for this is Asteroids. The Oort cloud is a huge spherical cloud of comets and dust that extends three light years from the Sun in all directions.

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