Physical Characteristics
Since Haumea has moons, the mass of the system can be calculated from their orbits using Kepler's third law. The result is 4.2×1021 kg, 28% the mass of the Plutonian system and 6% the mass of the Earth's Moon. Nearly all of this mass is in Haumea.
Read more about this topic: Haumea (dwarf Planet)
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“Theory may be deliberate, as in a chapter on chemistry, or it may be second nature, as in the immemorial doctrine of ordinary enduring middle-sized physical objects.”
—Willard Van Orman Quine (b. 1908)