Haumea

More Views

Haumea
Haumea, minor-planet designation 136108 Haumea, is a dwarf planet located beyond Neptune's orbit. Haumea's mass is about one-third that of Pluto, its gravity is thought to be sufficient for it to have relaxed into hydrostatic equilibrium, making it a dwarf planet. Haumea's elongated shape together with its rapid rotation, high density, and high albedo (from a surface of crystalline water ice), are thought to be the consequences of a giant collision, which left Haumea the largest member of a collisional family that includes several large trans-Neptunian objects (TNOs) and Haumea's two known moons, Hiʻiaka and Namaka. Haumea - Wikipedia, the free encyclopedia
Additional Information

Additional Information

Short Description Haumea, minor-planet designation 136108 Haumea, is a dwarf planet located beyond Neptune's orbit. Haumea's mass is about one-third that of Pluto, its gravity is thought to be sufficient for it to have relaxed into hydrostatic equilibrium, making it a dwarf planet. Haumea's elongated shape together with its rapid rotation, high density, and high albedo (from a surface of crystalline water ice), are thought to be the consequences of a giant collision, which left Haumea the largest member of a collisional family that includes several large trans-Neptunian objects (TNOs) and Haumea's two known moons, Hiʻiaka and Namaka. Haumea - Wikipedia, the free encyclopedia
Discovery date 2004 December 28
Type Dwarf planet
AddInfo Haumea family
Satellite of Sun
Minor planet number 136108
Orbit Prograde
Rotation Direct
Satellites Has satellites
Shape Equilibrium spheroid
Apoapsis 10 7 702 000 000 km
Periapsis 10 5 229 000 000 km
Semi-major axis 10 6 465 000 000 km
Distance from Sun 02 43.218 au
Eccentricity 0.191 26
Orbital period 284.12 year | 103 774 days
Orbital speed 01 4.531 km/s
Mean anomaly 209.07°
Inclination to the ecliptic 028.19°
Longitude of the ascending node 121.79°
Argument of periapsis 240.20°
Diameter/Size 04 1 436 km
Dimensions 1 920  ×  1 540  ×  990 km
Mass 1021×4.006 ± 0.040 kg | 0.00066 Earths
Density 01 2.6–3.3 g/cm3
Surface gravity  0.63 m/s2
Escape velocity 03 910 m/s
Rotation period 0.163 146 ± 0.000 004 days | 3.9155 ± 0.0001 hour
Albedo Bond 0.804
Temperature mean 02 50 K
Apparent magnitude 17.3 (opposition)
Absolute magnitude 0.03 ± 0.43
Comments