Moons of Pluto

Pluto has 5 known natural satellites.

5
Total Moons
1
Major Moons
1,212
Largest (km)

Major Moons

The most significant natural satellites

Charon

Charon

Pluto's largest moon, so big the pair forms a binary system.

1,212 km

Diameter

6.4 d

Orbit

1978

Discovered

Other Moons

4 smaller natural satellites

Nix

A small, irregularly shaped moon of Pluto.

49.8 km

Diameter

24.9 d

Orbit

2005

Discovered

Hydra

Pluto's outermost known moon with a rapid, chaotic rotation.

50.9 km

Diameter

38.2 d

Orbit

2005

Discovered

Kerberos

A small double-lobed moon of Pluto.

19 km

Diameter

32.2 d

Orbit

2011

Discovered

Styx

The smallest known moon of Pluto.

16 km

Diameter

20.2 d

Orbit

2012

Discovered