Nix in 3D: live position and orbit

A moon with a reddish crater on an otherwise bright icy surface, rotating chaotically and retrograde relative to its own orbit.

Nix is shown at its real position, computed from NASA/JPL ephemeris data. The view opens on Nix; you can travel in time, switch between the educational overview and the true-scale voyage, and compare it with every other body of the solar system.

Orbits

Pluto

Radius

18.0 km (± 6 %)¹

Mass

2.25 × 10¹⁶ kg (± 33 %)¹ (derived value)

Surface gravity

0.0046 m/s²¹ (derived value)

Mean distance from Pluto

49 300 km²

Orbital period

25 days²

Sidereal rotation

43.92 hours³

Missions

• New Horizons

Sources

1. NASA JPL Solar System Dynamics, Planetary Satellite Physical Parameters. read 2026-09-17. https://ssd.jpl.nasa.gov/sats/phys_par/
2. NASA JPL Solar System Dynamics, Planetary Satellite Mean Elements. read 2026-09-17. https://ssd.jpl.nasa.gov/sats/elem/
3. NASA NSSDCA, Planetary and Satellite Fact Sheets. read 2026-09-17. https://nssdc.gsfc.nasa.gov/planetary/planetfact.html