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Charon, the first of Pluto's satellites to be discovered, was first seen at the United States Naval Observatory by James W. Christy.
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Charon (moon)
Largest natural satellite of Pluto
Charon, formal designation (134340) Pluto I, is the largest of the five known natural satellites of the dwarf planet Pluto. It has a mean radius of 606 km (377 mi). Charon is the sixth-largest known trans-Neptunian object after Pluto, Eris, Haumea, Makemake, and Gonggong. It was…Source: Wikipedia (CC BY-SA)
United States Naval Observatory
Scientific agency in the United States
The United States Naval Observatory (USNO) is a scientific and military facility that produces geopositioning, navigation and timekeeping data for the United States Navy and the United States Department of Defense. Established in 1830 as the Depot of Charts and Instruments, it…Source: Wikipedia (CC BY-SA)
James W. Christy
American astronomer (born 1938)
James Walter "Jim" Christy is an American astronomer known for discovering Charon, the largest moon of the dwarf planet Pluto.Source: Wikipedia (CC BY-SA)