First Page | Document Content | |
---|---|---|
![]() Date: 2010-12-17 09:46:32Astronomy Precession Geodesy Celestial mechanics Time scales Sidereal time Axial precession Nutation International Earth Rotation and Reference Systems Service Measurement Astrology Celestial coordinate system | Source URL: maia.usno.navy.milDownload Document from Source WebsiteFile Size: 623,70 KBShare Document on Facebook |