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![]() Date: 2010-12-17 09:32:33Astrometry Celestial coordinate system Celestial mechanics Geodesy Barycentric Dynamical Time International Celestial Reference System Astronomical constant International Celestial Reference Frame Barycentric Coordinate Time Measurement Astrology Time scales | Source URL: maia.usno.navy.milDownload Document from Source WebsiteFile Size: 248,86 KBShare Document on Facebook |