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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.

Herny Norris Russell born, 1877.

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Wednesday October 25, 2017 All Day
Annually on October 25

Herny Norris Russell born, 1877.

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