Scr01146-1024x543 (1)
Adjective(s) Haumean
Orbital properties
Aphelion/apoapsis 51.483 AU
Perihelion/periapsis 34.952 AU
Semi-major axis 43.218 AU
Orbital eccentricity 0.19126
Orbital period 284.12 years
Average orbital speed 4.531 km/s
Physical properties
Radius ≈869.5 km
Mass (4.006±0.040)×1021 kg
Mean density 2.6 g/cm
Escape velocity ≈0.809 km/s
Rotation period 3.9155±0.0001 hours
Average surface temperature < 50 K
Apparent magnitude 17.3
Moons 2
Haumea is a Dwarf Planet also known as 2003 EL61


  • Haumea is named after a Hawaiian goddess.
  • It has two moons, Namaka and Hi'iaka.
  • Haumea has a strange shape that bulges out at the equator.
  • Haumea is smaller than Eris, Pluto, and Makemake.
  • It was discovered by a team lead by Mike Brown in 2004