Quaoar

noun Qua·oar \ ˈkwä(-ə)-ˌwär \

Definition of Quaoar

astronomy
:a probable dwarf planet that orbits far beyond the orbit of Neptune with a mean distance from the sun of about 43.4 astronomical units (4.03 billion miles) and a diameter of approximately 890 miles (1430 kilometers)
  • Discovered by Brown and his colleagues in 2002, Quaoar took center stage at a session of the planetary science meeting in Puerto Rico.
  • —Ron CowenScience News16 Jan. 2010
Note: Quaoar is believed to qualify as a dwarf planet under the current definition of that term, but precise identification of its characteristics is made difficult by its distance from the Earth.

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First Known Use of quaoar

2002


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