Pluto

Discovered 18/02/1930 · Clyde W. Tombaugh

Reclassified as dwarf planet in 2006

Mean Radius

1,188.3 km

Gravity

0.62 m/s²

Temperature

44 K (-229°C)

Orbital Period

90465.0 d

Distance

39.482 AU

Physical Properties

Mean Radius1,188.3 km

Mass1.3030 × 10^22 kg

Surface Gravity0.62 m/s²

Density1.890 g/cm³

Escape Velocity1.21 km/s

Mean Temperature44 K (-229°C)

Axial Tilt122.50°

Rotation Period153.29 h (retrograde)

AtmosphereYes

Ring SystemNone

Known Moons5

Orbital Elements (J2000)

Semi-major Axis39.481555 AU

Eccentricity0.248800

Inclination17.1600°

Orbital Period90465.00 days

Asc. Node (Ω)110.30347°

Arg. Perihelion (ω)113.76329°

Mean Anomaly (M₀)14.86205°

Perihelion4436756954.000 AU

Aphelion7376124302.000 AU

Known Moons (5)

CharonNixHydraKerberosStyx

Data Sources

Physical & orbital data: Solar System OpenData API (api.le-systeme-solaire.net) · Orbital elements: NASA JPL Horizons System (J2000 epoch)