Pluto
134340 Pluto (1930 BM)
🚀 Visited by spacecraft
📋 A written introduction is coming — for now this page shows official values only.
Physical data
- Mean radius
- 1,188.3 km
- Equatorial radius
- 1,188.3 km
- Mass
- 13,024.6 × 10²⁴ kg
- Density
- 1.853 g/cm³
- Surface gravity
- 0.62 m/s²
- Escape velocity
- 1.21 km/s
- Rotation period
- -6.3872 days
- Orbital period
- 247.9207 years
- Albedo
- 0.3
- Absolute magnitude V(1,0)
- -1 mag
- Absolute magnitude H
- -0.55 mag
Source:NASA JPL Solar System Dynamics · checked 2026-11-02 ↗NASA JPL Small-Body Database · checked 2026-11-02 ↗
Orbit
- Orbit class (JPL)
- TNO — TransNeptunian Object
- Semi-major axis
- 39.6 AU
- Eccentricity
- 0.252
- Inclination
- 17.1°
- Perihelion distance
- 29.6 AU
- Aphelion distance
- 49.6 AU
- Orbital period
- 91,000 days
- Perihelion passage
- JD 2447812.094
- Earth MOID
- 28.6 AU
Earth approach
- Potentially hazardous (PHA)
- No
- Near-Earth object (NEO)
- No
Related
In everyday life
- Its diameter is about 19% of Earth's (radius 1,188 km ÷ Earth's 6,371 km).
- One orbit takes about 91,000 Earth days (about 249.1 years).
- Sunlight needs about 5.5 hours to reach it on average (semi-major axis 39.6 AU) — versus about 8 min 19 s to Earth.