The newly-discovered moon has an estimated diameter of 38 km (23.6 miles) and a V magnitude of 28, likely making it the faintest satellite ever found around a trans-Neptunian object. This image of Quaoar and its moon Weywot was captured by the NASA/ESA Hubble Space Telescope on February 14, 2006. Image credit: NASA / ESA / Hubble / Michael E. Brown. Discovered on June 4, 2002, Quaoar is a trans-Neptunian object about 1,100 km (690 miles) in diameter. Like...
