Charon

Percival Lowell and the Search for Pluto

Percival Lowell and the Search for Pluto

On March 19, 1915, American astronomer Percival Lowell began to make photographies of the sky in the Lowell Observatory, which was founded by him, to search for a planet beyond Neptune. 15 years later, the dwarf planet Pluto was discovered on these photographies. “Formulae are the anaesthetics of thought, not its stimulants and to make any one think is far better worth while than cramming him with ill-considered, and therefore indigestible, learning.” –…
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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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