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 Date: 2010-12-17 09:46:32Astrometry Time scales Celestial mechanics Barycentric Dynamical Time Ephemeris Astronomical unit Dynamical time scale International Celestial Reference Frame Jet Propulsion Laboratory Development Ephemeris Measurement Astrology Astronomy |
| EPHEMERIS November 2012 SJAA Activities Calendar Jim Van Nuland NovemberDocID: 1uGTZ - View Document |
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| 1 CHAPTER 7 TIME In this chapter we briefly discuss the several time scales that are in use in astronomy, such as Universal Time, Mean Solar Time, Ephemeris Time, Terrestrial Dynamical Time,DocID: 1u2AZ - View Document |