Moons of Haumea
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The outer Solar System dwarf planet Haumea has two known moons, Hi iaka and Namaka, named after Hawaiian goddesses. These small moons were discovered in 2005, from observations of Haumea made at the large telescopes of the W. M. Keck Observatory in Hawaii. Haumea's moons are unusual in 5 ways. They are thought to be part of its extended collisional family, which formed billions of years ago from icy debris after a large impact disrupted Haumea's ice mantle. Hi iaka, the larger, outermost moon, has large amounts of pure water ice on its surface, a feature rare among Kuiper belt objects. Namaka,…mehr

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The outer Solar System dwarf planet Haumea has two known moons, Hi iaka and Namaka, named after Hawaiian goddesses. These small moons were discovered in 2005, from observations of Haumea made at the large telescopes of the W. M. Keck Observatory in Hawaii. Haumea's moons are unusual in 5 ways. They are thought to be part of its extended collisional family, which formed billions of years ago from icy debris after a large impact disrupted Haumea's ice mantle. Hi iaka, the larger, outermost moon, has large amounts of pure water ice on its surface, a feature rare among Kuiper belt objects. Namaka, about one tenth the mass, has an orbit with surprising dynamics: it is unusually eccentric and appears to be greatly influenced by the larger satellite.