Ephemeris
Refimprove date July 2008 An ephemeris plural ephemerides from the Greek language Greek word ???????? ... one of the history of computing first applications of mechanical computers, an ephemeris will still ..
Ephemeris time Ephemeris Time ET is a time scale used in ephemerides of celestial bodies, in particular the Sun as observed ... 31,556,925.9747 of the tropical year for 1900 January 0 January 0 at 12 hours ephemeris time. Caesium ..
American Ephemeris and Nautical Almanac
The American Ephemeris and Nautical Almanac was published for the years 1855 to 1980, containing information ..., The Nautical Almanac and Astronomical Ephemeris , with which it merged to form Astronomical ..
JPL Horizons On-Line Ephemeris System
JPL Horizons On Line Ephemeris System provides easy access to key solar system data and flexible production ... ?horizons JPL Horizons On Line Ephemeris System astronomy stub Category Astrometry zh ???????????? ..
Jet Propulsion Laboratory Developmental Ephemeris
astronomy stub The Jet Propulsion Laboratory Developmental Ephemeris JPL DE is a product of the Jet Propulsion Laboratory in Pasadena, California . This ephemeris is a system of numerical coefficients ..
Nautical almanac (disambiguation)
bodies American Ephemeris and Nautical Almanac first published in 1852 U.S. Nautical Almanac, part of the American Ephemeris and Nautical Almanac since 1958 The Nautical Almanac , the nautical ..
Astronomical Almanac
States Naval Observatory and Her Majesty s Nautical Almanac Office , containing solar system ephemeris ... Nautical Almanac and Astronomical Ephemeris had been published since 1766, and was renamed The Astronomical ..
Secular phenomena
In astronomy , secular phenomena which repeat too slowly to be observed, if at all are contrasted with phenomena observed to repeat periodically. In particular, astronomical ephemeris ephemerides use ...
Dynamical time scale
year for 1900 January 0 at 12 hours ephemeris time. Caesium atomic clocks became operational in 1955 ... three years of comparisons with lunar observations it was determined that the ephemeris second ..
Gaussian gravitational constant
of the Earth. In modern ephemeris ephemerides , the mean orbital axis of the Earth is slightly longer ... of the rate of Ephemeris Time , and in modern usage this day is understood to be measured in units ..
Adjusted calculation date
Fact date June 2007 In astrology , the adjusted calculation date , or artificial birthday is the day on which the planetary position shown in an Ephemeris coincides with the progressed positions of th ...
January 0
linked title refers to the day before January 1 in an annual ephemeris , which is a table of values of dates relating them to objects in the sky. It keeps the date in the year for which the ephemeris was published ..
JPL (disambiguation)
JPL stands for Jet Propulsion Laboratory, a NASA facility in Pasadena, California. JPL may also refer to JPL cyclecar , built in 1913 JPL Horizons On Line Ephemeris System , in astronomy Jacksonville ...
Barycentric Dynamical Time
. After atomic clock s were invented, they were used from 1960 to realise a new uniform time scale, Ephemeris Time ET . ET was henceforth used for the time variable in planetary ephemeris calculations ..
DE400
planets it is generally about 0.1 arcseconds. The reduced accuracy DE406 ephemeris gives an interpolating accuracy relative to the full ephemeris values no worse than 25 metres for any ..
Eben Jenks Loomis Ephemeris and Nautical Almanac alma mater doctoral advisor doctoral students known for author ... University Harvard in 1851 53 was assistant in the American Ephemeris and Nautical Almanac office from ..
Berliner Astronomisches Jahrbuch
The Berliner Astronomisches Jahrbuch abbrev. B.A.J. is an astronomical ephemeris almanac and the longest ... Ephemeris ans of Apparent Places of Fundamental Stars APFS . This merger was decided in 1959 by the International ..
Jed
International Airport at Jeddah, Saudi Arabia Julian Ephemeris Date, a.k.a. Julian Date JED ..
Robert Thomas Cross
as the editor of Raphael s Ephemeris which is still published today , though he never claimed ... s he obtained the copyright to Raphael s Ephemeris which is still owned by the Cross family today ..
Georgij A. Krasinsky
Georgij A. Krasinsky is a Russia n astronomer active at the Institute of Applied Astronomy, Russian Academy of Science , St Petersburg . He is notable for research on planetary motions and ephemeris . ...
Time to first fix
signal and obtain that satellite s detailed orbital information called GPS signals ephemeris data. Each satellite broadcasts its ephemeris data every 30 seconds, and is valid for up to four hours ..
Greeks in Austria
Image Ephemeris 1790.png thumb Ephemeris or Ephemeris, the first Greek newspaper was issued in Vienna The Greek community in Austria numbers between 5,000 and 18,000 people. They are located all around ..
Elena V. Pitjeva
and is currently head of the Laboratory of Ephemeris Astronomy at the Institute of Applied Astronomy ... of Ephemeris Astronomy title E.V. Pitjeva date 2006 08 23 url http www.ipa.nw.ru PAGE DEPFUND ..
Tables of Toledo
Gerard of Cremona 1114 1187 edited for Latin readers the Tables of Toledo Toledan Tables , the most accurate compilation of Astronomy astronomical astrological data ephemeris ever seen in Europe at th ...
5109 Robertmiller
?num 5109 Citation from Minor Planet Ephemeris Service MPES MinorPlanets Navigator 5108 Lübeck ..
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