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Weywot (moon)
Weywot, officially (50000) Quaoar I Weywot, is the only known moon of the trans-Neptunian object Quaoar. Its discovery by Michael E. Brown was reported in IAUC 8812 on 22 February 2007, based on imagery taken on 14 February 2006. The satellite was found at 0.35 arcsec from Quaoar with an apparent magnitude difference of 5.6.〔(Distant EKO ) The Kuiper Belt Electronic newsletter, March 2007〕 It orbits at a distance of 14,500 km from the primary and has an orbital eccentricity of about 0.14.〔 Assuming an equal albedo and density to the primary, the apparent magnitude suggests that the moon has a diameter of about 74 km ( of Quaoar).〔 Weywot is estimated to only have the mass of Quaoar.〔
==Name==
Upon discovery, Weywot was issued a provisional designation, . Brown left the choice of a name up to the Tongva (whose creator god Quaoar had been named after), who chose the sky god Weywot, son of Quaoar.〔("Heavenly Bodies and the People of the Earth" ), Nick Street, ''Search Magazine,'' July/August 2008〕 The name was made official in MPC #67220 published on October 4, 2009.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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