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Many Moons
Many Moons
22 Jan 2003
(Source: The Planetary Society)

Moons of the Solar System
The Planetary Society

The Numbers and Names

Moon Numbers - Just How Many Moons Are There?

A whirlwind of "new moon" discoveries have kept teachers, textbooks, and web sites scrambling to keep up. In an effort to set the record straight, listed below are the number of known moons in our solar system - as of January 2003.

Planet   Number of Moons
Mercury   0
Venus   0
Earth   1
Mars   2
Jupiter   40
Saturn   30
Uranus   21
Neptune   11
Pluto   1

Moon Names

Below are the names of most of the moons in the solar system. Not all the moons have names, especially the ones just recently discovered. Good luck pronouncing some of them!

Earth Luna   Mars Phobos
Deimos
  Jupiter Io
Europa
Ganymede
Callisto
Metis
Adrastea
Amalthea
Thebe
Leda
Himalia
Lysithea
Elara
Ananke
Carme
Pasiphae
Sinope
Callirrhoe
Themisto
Magaclite
Taygete
Chaldene
Harpalyke
Kalyke
Iocaste
Erinome
Praxidike
  Saturn Mimas
Enceladus
Tethys
Dione
Rhea
Titan
Hyperion
Iapetus
Pan
Atlas
Prometheus
Pandora
Epimetheus
Janus
Calypso
Telesto
Helene
Phoebe
  Uranus Miranda
Ariel
Umbriel
Titania
Oberon
Cordelia
Ophelia
Bianca
Cressida
Desdemona
Juliet
Portia
Rosalind
Belinda
Puck
Caliban
Stephano
Prospero
Setebos
  Neptune Naiad
Thalassa
Despina
Galatea
Larissa
Proteus
Triton
Nereid
  Pluto Charon
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Last Updated: 11 May 2011