Any object, man-made or natural, that orbits another body.
In astronomy, a satellite is a natural body that revolves around a planet and is also called a moon. With the IAU's 2006 decision on the definition of a planet (which changed the definition of Pluto), a satellite (moon) can also revolve around a dwarf planet, as Charon does for Pluto.
In aerospace and space exploration, a satellite is a man-made object launched into space to orbit the Earth, moon, sun or other celestial body. Some examples are weather satellites and communications satellites.
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