Dwarf planet + Includes
Nix +,
Hydra (moon) +,
Charon + Primary
Sun + Satellite
| Pluto |
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
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)
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)
Rotation speed
0.0131 km/s (47.18 km/h, 0.00814 mi/s, 29.316 mph)
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
Discoverer
Clyde W. Tombaugh +
Member of
Dwarf planet +
Primary
Sun +
Satellite
Nix +, Hydra (moon) +, Charon +
Categories Astronomy +, Dwarf planet +, Solar system +
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