What makes this world interesting
Its classification as a dwarf planet does not make it less interesting. Its orbit is inclined and elliptical. Charon is its main moon; the vast plain Sputnik Planitia reveals an active surface.
The portal / Solar System / Pluto
Dwarf planet
Pluto
A complex world beyond Neptune
Pluto combines mountains of water ice, plains of volatile ices and a tenuous atmosphere.
- Diameter
- ≈ 2 376 km
- Orbital period
- ≈ 248 ans
- Exploration
- New Horizons · 2015
Observe or explore it
A very faint target requiring suitable equipment and ephemerides. New Horizons photographs show details inaccessible to amateur visual observation.
Connect the discoveries
Sources and reference information
Rounded educational data, sources consulted on 18 October 2026. Orbital distances are mean reference distances from the Sun, not current distances from Earth. Periods are expressed in Earth time. The planner provides date-specific positions for supported targets.