| Apoapsis
|
7.37593e+9 km (49.305 AU, 4.58319e+9 mi) +
|
| Axial tilt
|
2.087 rad (119.591 °, 132.879 grad) +
|
| Circumference
|
188.925 AU (2.82628e+10 km, 1.75617e+10 mi) +
|
| Color
|
#EEBB88 +
|
| Date of discovery
|
1 September 1930 +
|
| Discoverer
|
Clyde W. Tombaugh +
|
| Dwarf planet mass
|
1.305e+22 kg (0.00218 M⊕, 0.178 M☾) +
|
| Dwarf planet surface area
|
17,950,000 km² (6,930,533.746 mi², 0.0352 A⊕, 0.473 A☾) +
|
| Escape speed
|
1.2 km/s (4,320 km/h, 0.746 mi/s, 2,684.324 mph) +
|
| Inclination
|
0.299 rad (17.142 °, 19.046 grad) +
|
| Maximum temperature
|
55 K (-218.15 °C, -360.67 °F, 99 °R) +
|
| Mean radius
|
1,195 km (742.539 mi) +
|
| Mean temperature
|
44 K (-229.15 °C, -380.47 °F, 79.2 °R) +
|
| Member of
|
Dwarf planet +,
Solar system +
|
| Minimum temperature
|
33 K (-240.15 °C, -400.27 °F, 59.4 °R) +
|
| Orbital eccentricity
|
0.249 +
|
| Orbital speed
|
4.666 km/s (16,797.6 km/h, 2.899 mi/s, 10,437.545 mph) +
|
| Order
|
10 +
|
| Periapsis
|
4.43682e+9 km (29.658 AU, 2.75691e+9 mi) +
|
| Planet density
|
2,030 kg/m³ (2.03 g/ml, 126.729 lb/ft³) +
|
| Primary
|
Sun +
|
| Rotation speed
|
0.0131 km/s (47.18 km/h, 0.00814 mi/s, 29.316 mph) +
|
| Satellite
|
Charon +,
Hydra (moon) +,
Nix +
|
| Satellites
|
3 +
|
| Semi-major axis
|
5.90638e+9 km (39.482 AU, 3.67005e+9 mi) +
|
| Sidereal day
|
-153.294 h (-6.387 da) +
|
| Sidereal period
|
90,614.872 da (248.09 a) +
|
| Surface gravity
|
0.58 m/s² (1.903 ft/s², 0.0591 g) +
|
| Symbol
|
♇ +
|
| Synodic period
|
366.73 da (1.004 a) +
|
| Titius-Bode prediction
|
77.2 AU +
|
| Visiting mission
|
New Horizons mission +
|
| Categories |
Astronomy +,
Solar system +,
Dwarf planet +,
Pluto +
|
