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Moons of the Planets

This page lists the 203 known moons of all the planets in our solar system. Every so often new moons are discovered for the outer dwarf planets.

Mercury Moons = 0

Mercury is too close to the Sun to hold on to a moon.

Venus Moons = 0

Venus may have had a moon in the distant past, which collided with another object and then impacted Venus.

Earth Moons = 1

Earth also has several quasi-satellites, asteroid 2016 HO3 being the closest with the most stable orbit.

Mars Moons = 2

Both moons may be captured asteroids, and can be viewed in most amateur telescopes.

Dwarf Ceres Moons = 0

Jupiter Moons = 79

Listed in order of size. The first 4 moons listed, the Galilean moons, are viewable with binoculars and any telescope, while Amalthea can be be viewed in larger amateur telescopes.

Saturn Moons = 62

Listed in order of size. The first 7 or 8 moons listed are viewable using a decent-sized telescope. Titan is viewable with binoculars. Saturn also has millions of moonlets embedded in its ring system.

S/2004 S13

S/2006 S1

S/2004 S17

S/2004 S12

S/2007 S2

S/2007 S3

S/2004 S7

S/2006 S3

Uranus Moons = 27

Listed in order of size. The first 4 moons can be viewed in larger telescopes.

Neptune Moons = 14

Listed in order of size. Triton is viewable using an 8-inch or larger telescope.


Dwarf Pluto Moons = 5

Listed in order of size. Pluto and Charon are considered a binary dwarf planet system and are only visible in large amateur telescopes.

Dwarf Orcus Moons = 1

Dwarf Haumea Moons = 2

Dwarf Quaoar Moons = 1

Dwarf Makemake Moons = 1

Dwarf 2007 OR10 Moons = 1

Dwarf Eris Moons = 1

Dwarf Salacia Moons = 1


Objects here are in very elongated orbits that travel from the Kuiper Belt out to the inner Oort Cloud.

Dwarf 2012 VP113 Moons = 0

Dwarf Sedna Moons = 0

Dwarf "The Goblin" (2015 TG387) Moons = 0

Dwarf "Caju" (2015 BP519) Moons = 0

Dwarf "Farout" (2018 VG18) Moons = 0

Planet 9 Moons = ?

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