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ad.usno.navy.mil: The Usno Astrometry Department
The Astrometry Department of the U.S. Naval Observatory is responsible for the determination of fundamental positions, motions and distances of selected celestial objects.
Keyword: astrometry , astronomy , department of defense , dod , full-sky astrometric mapping explorer , navy , u.s. government , ucac , wds
ad.usno.navy.mil/

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