Multi-epoch stellar occultations reveal Quaoar is an oblate spheroid with density 1.760±0.109 g/cm³, consistent with Maclaurin hydrostatic equilibrium and dwarf planet status.
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Size, shape, density, and atmospheric limit of (50000) Quaoar revealed from 14 years of stellar occultation
Multi-epoch stellar occultations reveal Quaoar is an oblate spheroid with density 1.760±0.109 g/cm³, consistent with Maclaurin hydrostatic equilibrium and dwarf planet status.