Ephemeris time

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61	PDF Document Add to Reading List Source URL: www.imcce.fr Language: English - Date: 2009-09-19 11:47:08 Celestial mechanics Astrometry Time scales Spaceflight Ephemeris Barycentric Dynamical Time Astronomical unit Dynamical time scale Orbit Astronomy Astrology Planetary science
62	PDF Document Add to Reading List Source URL: www.leapsecond.com Language: English - Date: 2005-01-26 14:37:02 Horology International Atomic Time Ephemeris time Atomic clock Universal Time Second Radio clock Quartz clock Caesium standard Measurement Clocks Time scales
63	PDF Document Add to Reading List Source URL: www.fqxi.org Language: English - Date: 2009-04-15 15:30:00 Celestial mechanics Units of time Timekeeping Ephemeris time Mass Solar time Sidereal time Equation of time ΔT Measurement Time scales Horology