3, Charon, Nix and Hydra.
The dwarf planet Pluto has at least 10 known satellites. There is also a small system of rings of debris that has been recently detected.
248.09 Earth years for Pluto to orbit the Sun
Of the eight planets in our solar system, only Mercury and Venus have no known satellites. Furthermore, Pluto has at least four of them.
There are 168 known natural satellites (moons) of the 8 major planets. There are also moons around 3 of the 5 dwarf planets (Pluto, Eris, and Haumea). There are more than 200 artificial satellites (or expired satellites) in Earth orbit or scattered throughout the solar system.
As of now, only one satellite has explored Pluto: NASA's New Horizons spacecraft in 2015. No robots have directly explored Pluto's surface, but data collected by New Horizons has provided valuable insights into this distant world.
10 satellites. Only 2, Phobos and Diemos2 - Phobos and Demos
There is much space debris. Humans have many decayed satellites and probes floating around.
As of 2012, there are 4 known natural satellites (moons) of Pluto.Charon was discovered in 1978, Nix and Hydra in 2005, and the fourth moon, provisionally called S/2011P1, was found in 2011. Charon's diameter is over half that of Pluto, and the Pluto-Charon pair actually represent a co-orbiting binary system. Nix and Hydra are both much smaller, having diameters estimated at between 5% and 7% of Pluto's.There are no artificial satellites orbiting Pluto. The unmanned NASA probe "New Horizons" will pass near Pluto in 2015.
As of September 2021, there are currently 9 active artificial satellites orbiting Mars. These satellites are used for various purposes, including studying the Martian surface, atmosphere, and environment.
Around 6000
around 197
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