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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 ... Keywords: astronomy , astrometry , ucac , wds , navy , department of defense , dod , u.s. government ad.usno.navy.mil/ Giant Stars Compare planets of the solar system with some of the largest known stars. Features video with commentary, interactive multimedia and visitor comments. www.giantstars.de/ Submit Site to the Stars Directory |