Reference image
Object guide
Haumea is a rapidly rotating, elongated dwarf planet in the Kuiper Belt, notable for its high spin rate and collisional family. Haumea is approximately 1,632 km across.
How to observe Haumea
Haumea is generally a challenging visual target. Use a current ephemeris, dark skies, and image stacking when its angular size or brightness is insufficient for direct detail.
Scientific context
Useful scale comparisons are 0.128 Earth diameters, 0.045 g surface gravity, 283.121 Earth years per orbit. These values are rounded from the catalogue measurements shown on this page.
- Radius
- 816 km
- Diameter
- 1,632 km
- Mass
- 4,000,000,000,000,000,000,000 kg
- Mean density
- 1.758 g/cm³
- Surface gravity
- 0.44 m/s² (0.045 g)
- Orbital period
- 103,410 days (283.121 years)
- Semi-major axis
- 43.2 AU
- Mean sunlight travel time
- 359.28 minutes
0.128 Earth diameters0.045 g surface gravity283.121 Earth years per orbit
Source: NASA Science (checked 2026-08-09). Values are rounded catalogue measurements.
Interactive orbit model
Aug 13, 2026, 22:251×
Calculated positions / separate exploration scales