There are several objects that can be excluded from a list of objects in the solar system:
1. Non-celestial objects: This includes man-made satellites, space probes, and debris from human activities that may be present in space but are not part of the natural celestial objects in the solar system.
2. Dwarf planets: The International Astronomical Union (IAU) has officially classified five objects as dwarf planets in our solar system, namely Pluto, Eris, Haumea, Makemake, and Ceres. These objects are not considered full-fledged planets due to either their small size or their inability to clear their orbital paths.
3. Comets: While comets are celestial objects, they are not always considered part of the main bodies in the solar system. Comets are small icy bodies composed mainly of water, methane, and other volatile compounds, and they typically orbit the Sun in highly elliptical orbits.
4. Minor moons: There are numerous small moons or natural satellites that orbit planets in our solar system. While they are technically part of the solar system, these minor moons may be excluded from a list depending on the specific criteria being used.
5. Artificial objects: This includes items such as space stations, satellites, and other man-made structures that have been placed in orbit around Earth or other celestial bodies. While they may physically exist in the solar system, they are not natural celestial objects.
6. Trans-Neptunian objects: These objects, including the Kuiper belt objects (KBOs), are mainly found beyond the orbit of Neptune. They consist of icy bodies similar to comets and include objects like Pluto and other large, distant bodies. These objects may be excluded from a list of the main bodies in the solar system, depending on the specific criteria being used.
Note: The specific objects to be excluded from a list of objects in the solar system may vary depending on the context and purpose of the list.
which can be excluded from a list of objects in the solar system
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