James Christy, Co-Discoverer of Charon, Pluto’s Largest Moon
June 25, 2018
| Credit | U.S. Naval Observatory |
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1978
Jim Christy points to the photographic plate on which he and U.S. Naval Observatory colleague Robert Harrington discovered Pluto’s largest moon, Charon, in 1978.
2018
Jim Christy in 2018.
NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute/Art Howard/GHSPi
Forty years after his important discovery, Jim Christy holds two of the telescope images he used to spot Pluto’s large moon Charon in June 1978. A close-up photo of Charon, taken by the New Horizons spacecraft during its July 2015 flyby, is displayed on his computer screen.
