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![]() Date: 2007-03-09 14:21:00Time scales Astrometry Celestial mechanics Barycentric Dynamical Time Planetary mass Dynamical time scale Ephemeris Astronomical unit Astronomical constant Measurement Astronomy Astrology | Source URL: maia.usno.navy.milDownload Document from Source WebsiteFile Size: 163,39 KBShare Document on Facebook |
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