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Astrometry --- Celestial mechanics --- Geodesy --- General relativity (Physics) --- Astrométrie --- Mécanique céleste --- Géodésie --- Relativité générale (Physique) --- Astrométrie --- Mécanique céleste --- Géodésie --- Relativité générale (Physique) --- Celestial mechanics.

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52 <063> --- Astrometry --- -Astronomical photometry --- -Astronomical spectroscopy --- -Spectroscopy, Astronomical --- Brightness (Astronomy) --- Photometry, Astronomical --- Positional astronomy --- Spherical astronomy --- Astronomie. Astrofysica. Ruimteonderzoek. Geodesie--Congressen --- -Astronomie. Astrofysica. Ruimteonderzoek. Geodesie--Congressen --- Astronomical photometry --- Astronomical spectroscopy --- Congresses --- Star spectroscopy --- Astrométrie --- Spectroscopie astronomique --- Photométrie astronomique --- Astrométrie. --- Spectroscopie astronomique. --- Photométrie astronomique. --- Stars. --- Étoiles --- Astrométrie. --- Photométrie astronomique. --- Étoiles

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The new reduction of the Hipparcos data presents a very significant improvement in the overall reliability of the astrometric catalogue derived from this mission. Improvements by up to a factor 4 in the accuracies for in particular brighter stars have been obtained. This has been achieved mainly through careful study of the satellite dynamics, and incorporating results from these studies in the attitude modelling. Data correlations, caused by attitude-modelling errors in the original catalogue, have all but disappeared. This book provides overviews of the new reduction as well as on the use of the Hipparcos data in a variety of astrophysical implementations. A range of new results, like cluster distances and luminosity calibrations, is presented. The Hipparcos data provide a unique opportunity for the study of satellite dynamics. The orbit covered a wide range of altitudes, showing in detail the different torques acting on the satellite. One part of the book details these studies and their impact on the new reduction. It furthermore presents an extensive summary on a wide range of spacecraft and payload calibrations, which provide a detailed record of the conditions under which these unique Hipparcos data have been obtained.

Astrometry --- Data reduction --- Astrométrie --- Réduction des données (Statistique) --- Hipparcos (Artificial satellite) --- Astrometry. --- Data reduction. --- Hipparcos (Artificial satellite). --- Astronomy & Astrophysics --- Physical Sciences & Mathematics --- Astronomy - General --- Astrophysics --- Astrométrie --- Réduction des données (Statistique) --- EPUB-LIV-FT LIVPHYSI SPRINGER-B --- Reduction of data --- Positional astronomy --- High Precision Parallax Collecting Satellite --- Astrophysics. --- Mechanics. --- Astronomy, Observations and Techniques. --- Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics). --- Classical Mechanics. --- Spherical astronomy --- Automatic data collection systems --- Statistics --- Classical mechanics --- Newtonian mechanics --- Physics --- Dynamics --- Quantum theory --- Astronomical physics --- Astronomy --- Cosmic physics --- Observations, Astronomical. --- Astronomy—Observations. --- Space sciences. --- Science and space --- Space research --- Cosmology --- Science --- Astronomical observations --- Observations, Astronomical