Quaoar

noun
Qua·​oar | \ ˈkwä(-ə)-ˌwär How to pronounce Quaoar (audio) \

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 Cowen, Science News, 16 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, in the meaning defined above

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Cite this Entry

“Quaoar.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Quaoar. Accessed 9 Aug. 2020.

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