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Pocono Mountain Observatory

The Pocono Mountain Observatory is a privately owned facility             
           located in the heart of the Pocono Mountains PA.

James Christy, discovers Charon 1978.

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Friday June 22, 2018 All Day
Annually on June 22

James Christy, discovers Charon the moon of Pluto 1978.

http://en.wikipedia.org/wiki/Charon_(moon)