James Christie

The Discovery of Charon

The Discovery of Charon

On June 22, 1978, US astronomer James Christie discovered Charon, the largest moon of Pluto. Although there was a discussion after the reclassification of Pluto as a dwarf, Charon is not in the list of dwarf planets currently recognized by the IAU. On June 22, 1978,  John Christy had examined the magnified images of the former planet Pluto, taken with the 61-inch Flagstaff telescope two months prior. He noticed a periodically appearing elongation, which…
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