Haumea

2,322 kmmaximum extent

Updated

2,322km
Visual creditscaleofspace.org / CC BY-NC 4.0

Details

Haumea is a dwarf planet in the Kuiper Belt with a noticeably stretched silhouette. Its rapid rotation makes it one of the most unusual large bodies in the outer Solar System, and it also has two moons and a ring. The odd system is likely the aftermath of a major collision early in Haumea’s history.

Haumea rotates once in about four hours, fast enough to stretch the dwarf planet into a markedly elongated shape. It has two moons, a ring detected during a stellar occultation, and a family of smaller objects with similar water-ice spectra. A major ancient collision is the leading way to connect those features, but the exact impact history is reconstructed from models rather than observed directly.

Key facts

Category
Dwarf planets
Object class
Dwarf planet
Mass
~0.00067 Earth masses
Host
Sun
Scale fact
2,322 kmmaximum extent
Estimated age
~4.5 billion years
Composition
Rock and water ice
Embed

Size neighbors

Objects near Haumea on the scale

On the logarithmic size axis, Haumea falls between Titania and Eris. The band uses nearby Dwarf planet records.

Shared physical scale
1,820km
Ceres940 km
Makemake1,430 km
Haumea2,322 km
Eris2,326 km
Pluto2,380 km

Sources

References for Haumea

Measurements and descriptive context are compiled by the Scale of Space team from the references below. If you find an error, please let us know.

Continue with nearby objects or open the full scale.

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