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The United States Naval Observatory
Link Details for:
The United States Naval Observatory
Link Title:
The United States Naval Observatory
Link URL:
http://www.usno.navy.mil/
Link Details:
The USNO mission is to determine the positions and motions of celestial objects, to provide astronomical data, to measure the Earth's rotation and to maintain the Master Clock for the United States.
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Top : Regional : North_America : United_States : Government : Military : Navy : Science_and_Technology
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Link Details for: The United States Naval Observatory
