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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.

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Sunday, December 23, 2018 jump to date
All Day Giovanni Cassini discovers Rhea, moon of Saturn, 1672.

Giovanni Cassini discovers Rhea, moon of Saturn, 1672.

http://en.wikipedia.org/wiki/Giovanni_Domenico_Cassini

 

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