Haumea

Haumea — dwarf planet, shown live in Cosmoscope, a real-time 3D map of the universe.

The fastest-spinning large body in the solar system. Whirling once every four hours, it has been stretched into a crystalline-ice rugby ball, trailed by two moons and a thin ring.

Shape
Egg-shaped — ~2,100 km long
Discovered
2004
Year
~284 Earth years
Day
Just 3.9 hours — spun into an ellipsoid
Moons
Hiʻiaka & Namaka
Rings
Yes — discovered in 2017

Seeing Haumea in real time

Cosmoscope puts Haumea at its true position in the solar system, computed from JPL-derived ephemeris and updated continuously. Open the live 3D view to see, in real time, how far Haumea is from the Sun and from Earth right now, how many minutes or hours light takes to cross that gap, and how fast it is moving along its orbit. Scrub the timeline to place Haumea where it was on any past date, or where it will be years from now.

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