| Albedo
|
0.87 +
|
| Apoapsis
|
1.45903e+10 km (97.53 AU, 9.06598e+9 mi) +
|
| Color
|
#FFFFFF +
|
| Date of discovery
|
21 October 2003 +
|
| Discoverer
|
Michael E. Brown +,
Chad Trujillo +,
David Rabinowitz +
|
| Dwarf planet mass
|
1.66e+22 kg (0.00278 M⊕, 0.226 M☾) +
|
| Dwarf planet surface area
|
21,237,166 km² (8,199,715.634 mi², 0.0416 A⊕, 0.56 A☾) +
|
| Escape speed
|
1.305 km/s (4,698 km/h, 0.811 mi/s, 2,919.202 mph) +
|
| Inclination
|
0.771 rad (44.16 °, 49.066 grad) +
|
| Maximum temperature
|
55 K (-218.15 °C, -360.67 °F, 99 °R) +
|
| Mean radius
|
1,300 km (807.783 mi) +
|
| Mean temperature
|
42.5 K (-230.65 °C, -383.17 °F, 76.5 °R) +
|
| Member of
|
Dwarf planet +,
Solar system +
|
| Minimum temperature
|
30 K (-243.15 °C, -405.67 °F, 54 °R) +
|
| Orbital eccentricity
|
0.44 +
|
| Orbital speed
|
3.436 km/s (12,369.6 km/h, 2.135 mi/s, 7,686.113 mph) +
|
| Order
|
11 +
|
| Periapsis
|
5.67425e+9 km (37.93 AU, 3.52581e+9 mi) +
|
| Planet density
|
2,260 kg/m³ (2.26 g/ml, 141.087 lb/ft³) +
|
| Primary
|
Sun +
|
| Satellite
|
Dysnomia +
|
| Satellites
|
1 +
|
| Semi-major axis
|
1.01326e+10 km (67.732 AU, 6.29608e+9 mi) +
|
| Sidereal day
|
8 h (0.333 da) +
|
| Sidereal period
|
203,590.35 da (557.4 a) +
|
| Surface gravity
|
0.655 m/s² (2.15 ft/s², 0.0668 g) +
|
| Titius-Bode prediction
|
154 AU +
|
| Categories |
Astronomy +,
Solar system +,
Dwarf planet +,
Eris +
|
