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Regional: North_America: United_States: Pennsylvania: Science_and_Environment: Astronomy:
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See also:
- Regional: North America: United States: Science and Environment: Astronomy (0)
- Science: Astronomy (3,956)
- Oil Region Astronomical Society - Group of men, women and youths who share their equipment and knowledge of the stars in an effort to promote the fundamentals of astronomy and space science. Features the Oil Region Astronomical Observatory, education, calendar, and contacts..
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