How Many Moons Does Each Planet Have?

Answer

Mercury and Venus have no moons. Earth, of course, has just one moon, Luna. Mars has two moons, Phobos and Deimos. Jupiter has a total of 67 moons, including the famous “Galilean moons” Io, Europa, Ganymede, and Callisto; Saturn has 62, of which Titan is the most massive and the most famous; Uranus has 27, all named after Shakespeare and Alexander Pope characters; and Neptune has 14, of which Triton is the most massive. Pluto, which is considered a dwarf planet, has five moons.

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caledon | High School Teacher | (Level 3) Senior Educator

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Our data has improved considerably in the last 20 years.

Mercury: no moons

Venus: no moons

Earth: 1 moon

Mars: 2 moons, Phobos, Deimos

Jupiter: 67 moons, some of which do not yet have proper names. The most famous are the Galilean moons, Io, Europa, Ganymede and Callisto.

Saturn: 62 moons, some of which do not yet have proper names. The most famous, by far, is Titan, which is significantly more massive than any other Saturnian moon.

Uranus: 27 moons, all of which are named after characters in the works of Shakespeare and Alexander Pope. Five are well known; Titania, Oberon, Miranda, Ariel, Umbriel

Neptune: 14 moons, the most massive by far being Triton.

While Pluto, Eris, Haumea, Orcus and Quaoar are considered dwarf planets, they nevertheless have moons.

Pluto: 5 moons, Charon, Nix, Hydra, Kerberos, Styx

Eris: 1 moon, Dysnomia

Haumea: 2 moons, Hi'iaka, Namaka

Orcus: 1 moon, Vanth

Quaoar: 1 moon, Weywot

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taangerine | Student, Grade 12 | (Level 1) Valedictorian

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  1. Ceres-Zero (0)
  2. Mercury- Zero (0)
  3. Earth- One (1)
  4. Mars- Two (2)
  5. Venus- Zero (0)
  6. Jupiter- Sixty-three (63)
  7. Saturn - Sixty-one (61)
  8. Uranus - Thirty-two (32)
  9. Neptune- Eighteen (18)
  10. And, last but not least, Pluto (Dwarf Planet)- Three (3)
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jess1999 | Student, Grade 9 | (Level 1) Valedictorian

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Here is the lest of moons that each planets have.

Mercury = None

Venus = None

Earth = one

mars = two

Jupiter = sixty three

Saturn = sixty one

Uranus = thirty three

Neptune = eighteen

Pluto = three

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atyourservice | Student, Grade 11 | (Level 3) Valedictorian

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Mercury 0 

Venus 0 

Earth 1 

Mars 2 

Ceres 0 

Jupiter 63 

Saturn 61 

Uranus 32 

Neptune 18 

Pluto 3 

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kevin0001 | Student, Grade 9 | (Level 1) Salutatorian

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The number of moons vary from planet to planet. Only two planets have no moon. 

Mercury has no moon.

Venus also has no moon. 

Earth has one moon.

Mars has 2 moons. 

Jupiter has 67 moons, the most out of the planets in our solar system.

Saturn has 62 moons, the second planet to have the most moons.

Uranus has 27 moons.

Neptune has 14 moons. 

Finally, Pluto has 3 moons.

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crystaltu001 | Student, Grade 10 | (Level 1) Valedictorian

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Mercury: No moons

Venus : No moons

Earth : One moon

Mars : Two moons

Jupiter : Sixty - Seven moons

Saturn : Sixty - Two moons

Uranus : Twenty - seven moons

Neptune : Fourteen Moons

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arrellbelle | Student, College Sophomore | (Level 1) Valedictorian

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I've decided to include Pluto despite many people considering it to not be a planet and the newly discovered planets Eris and Ceres.

  • Mercury - 0 
  • Venus - 0 
  • Earth - 1 
  • Mars - 2 
  • Ceres - 0 
  • Jupiter - 63 
  • Saturn - 61 
  • Uranus - 32 
  • Neptune - 18 
  • Pluto - 3 
  • Eris - 1 
zumba96's profile pic

zumba96 | Student, Grade 11 | (Level 3) Valedictorian

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Mercury 0 
Venus 0 
Earth 1 
Mars 2 
Ceres 0 
Jupiter 63 
Saturn 61 
Uranus 32 
Neptune 18 
Pluto 3 

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adarshanurag | Student, Grade 11 | (Level 1) Valedictorian

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mercury and venus  - 0

earth and pluto - 1

mars - 2

neptune - 8

uranus - 15

saturn - 16

jupiter - 18

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fact-finder | (Level 3) Valedictorian

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All planets except Mercury and Venus have at least one moon. Saturn has the greatest number of moons—18. In 1995, the Hubble Space Telescope detected what appeared to be four additional moons of Saturn; however, that discovery has yet to be confirmed.

Planet Number of Moons Names of Moons
Mercury 0
Venus 0
Earth 1 The Moon (sometimes called Luna)
Mars 2 Phobos, Deimos
*Several other satellites have been reported but not confirmed.
Jupiter 16* Metis, Adrastea, Amalthea, Thebe, Io, Europa, Ganymede, Callisto, Leda, Himalia, Lysithia, Elara, Ananke, Carme, Pasiphae, Sinope
Saturn 18* Atlas, 1981S13 (unnamed as yet), Prometheus, Pandora, Epimetheus, Janus, Mimas, Enceladus, Ththys, Telesto, Calypso, Dione, Helene, Rhea, Titan, Hyperion, Iapetus, Phoebe
Uranus 15 Cordelia, Ophelia, Bianca, Cressida, Desdemona, Juliet, Portia, Rosalind, Belinda, Puck, Miranda, Ariel, Umbriel, Titania, Oberon
Neptune 8 Naiad, Thalassa, Despina, Galatea, Larissa, Proteus, Triton, Nereid
Pluto 1 Charon

 

Sources: Famighetti, Robert, ed. World Almanac and Book of Facts 1996, pp. 279-80; The Universal Almanac 1992, pp. 17-22.

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user4511130 | eNotes Newbie

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Mercury: 0

Venus: 0

Earth: 1 moon

Mars: 2 moons

Jupiter: 67 moons 

Saturn: 62 moons

Uranus: 27 moons 

Neptune: 14 moons

 Pluto: 5 moons

Eris: 1 moon

Haumea: 2 moons

Orcus: 1 moon

Quaoar: 1 moon

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