How many moons are there in the solar system?

There are 178 known moons in the Solar System. The planet which has the most natural satellites is Jupiter with 66. There are also 104 asteroid moons and as many as 58 satellites of potential dwarf planet candidates.

Major Planets (171)
  • Mercury does not have any natural satellites (moons)
  • Venus does not have any natural satellites (moons).
  • Earth has 1 natural satellite (moon) called 'The Moon' or Luna (asteroid Cruithne orbits the Sun in a 1:1 orbital resonance with Earth)
  • Mars has 2 natural satellites (moons)
  • Jupiter has 66 natural satellites (moons)
  • Saturn has 62 (+1 unconfirmed) natural satellites (moons) and over 150 moonlets
  • Uranus has 27 natural satellites (moons)
  • Neptune has 13 natural satellites (moons)

Dwarf Planets (7)
  • Pluto has 4
  • Eris has 1
  • Haumea has 2
  • Ceres has none
  • Makemake has none

*For a complete list, see the related link below. There is also a link to more information at the Nine Planets website.
Planet/# of moons
Uranus- 27