In October 2017, astronomers announced the discovery of a ring system around Haumea, representing the first ring system discovered for a trans-Neptunian object and a dwarf planet. Haumea's gravity was until recently thought to be sufficient for it to have relaxed into hydrostatic equilibrium, though that is now unclear.

Jan 22, 2025 · Haumea is the first known Kuiper Belt Object to have rings. Scientists announced the discovery in 2017 after watching the dwarf planet pass in front of a star. Dwarf planet Haumea is a member of a group of objects that orbit in a disc-like …

Oct 12, 2017 · Observations of a stellar occultation of Haumea, one of the four known trans-Neptunian dwarf planets, constrain its size, shape and density, and reveal a ring coplanar with Haumea’s largest moon.

Jan 20, 2025 · In 2017 astronomers discovered a ring around Haumea. The ring is about 70 km (40 miles) wide and is at a radius of 2,287 km (1,421 km) from the dwarf planet. The ring is in the same plane with Haumea’s equator and the orbit of Hi‘iaka.

Oct 11, 2017 · Today, scientists are reporting the discovery of a vast ring encircling Haumea, a distant dwarf planet that takes some 284 Earth years to orbit the Sun, and it's the first time we've seen a ring in this category of minor planet.

Oct 11, 2017 · That egg, called Haumea, is now the first official dwarf planet found to host a ring system, and only the third body smaller than Neptune known to have rings. The discovery also marks the...

Jun 9, 2023 · But the dwarf planet Haumea, a little oblong chunk of rock that lies 50 times farther away from the sun than Earth, is the only official dwarf planet ringed by its own collection of orbiting space particles.

Oct 11, 2017 · Scientists have discovered a ring system around the dwarf planet Haumea. passed between Earth and a distant star, allowing planetary scientists to get a better idea of the dwarf planet's shape...

Oct 12, 2017 · Astronomers have unexpectedly discovered a ring around Haumea, a mysterious dwarf planet on the edge of our solar system.

Jun 2, 2024 · Haumea is a dwarf planet located beyond Neptune in the Kepuir Belt. Its rotation is the fastest in the solar system as it completes it in just 4 hours. It has a ring that orbits around it and is an elongated ellipsoid.