Astrometry Of Fundamental Catalogues
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Astrometry Of Fundamental Catalogues
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Author : Hans G. Walter
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Astrometry Of Fundamental Catalogues written by Hans G. Walter and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
Celestial fundamental catalogues are a prerequisite for the determination of absolute positions and motions in space. Presently, positional astrometry is at the watershed between classical fundamental catalogues, based on moving reference stars, and modern catalogues, based on extragalactic reference objects with non-measurable motion. This book addresses the concepts and methods of the respective construction techniques leading to the stellar frame of the FK5 (fifth fundamental catalogue) and to the newly adopted extragalactic radio reference frame, ICRF (international celestial reference frame), with its extension to optical wavelengths by the Hipparcos Catalogue. While principal outlines of meridian circle observations are given, emphasis is put in some detail on the VLBI technique as applied to astrometry, and to the observational techniques used in the Hipparcos mission, including the tie of the originally non-anchored rigid Hipparcos sphere into the ICRF.
Fundamentals Of Astrometry
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Author : Jean Kovalevsky
language : en
Publisher: Cambridge University Press
Release Date : 2004-06-03
Fundamentals Of Astrometry written by Jean Kovalevsky and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-06-03 with Science categories.
Astrometry encompasses all that is necessary to provide the positions and motions of celestial bodies. This includes observational techniques, instrumentation, processing and analysis of observational data, reference systems and frames, and the resulting astronomical phenomena. Astrometry is fundamental to all other fields of astronomy, from the pointing of telescopes, to navigation and guidance systems, to distance and motion determinations for astrophysics. In the last few decades, new observational techniques have enabled improvements in accuracy by orders of magnitude. Starting from basic principles, this book provides the fundamentals for this new astrometry at milli- and micro-arcsecond accuracies. Topics include: basics of general relativity; co-ordinate systems; vectors, tensors, quaternions, and observational uncertainties; determination and use of the celestial and terrestrial reference systems and frames; applications of new observational techniques; present and future star catalogues and double star astrometry. This comprehensive reference will be invaluable for graduate students and research astronomers.
Astronomy Of Star Positions
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Author : Heinrich Karl Eichhorn
language : en
Publisher: Frederick Ungar
Release Date : 1974
Astronomy Of Star Positions written by Heinrich Karl Eichhorn and has been published by Frederick Ungar this book supported file pdf, txt, epub, kindle and other format this book has been release on 1974 with Science categories.
Modern Astrometry
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Author : Jean Kovalevsky
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-03-09
Modern Astrometry written by Jean Kovalevsky and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-09 with Science categories.
An introduction to practical astrometry, dealing with the determination of positions, motions, distances and dimensions of celestial bodies ranging from quasars to artificial satellites. For this 2nd edition, the release of the Hipparcos and Tycho catalogs, the rise in CCD astrometry and the adoption of a new celestial reference frame by the IAU led to a significant modification of the text. And, especially, the outlook for astrometry has been completely rewritten.
Star Catalogues And Their Significance To Geodesy Of The 1980 S
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Author : Mahlon S. Hunt
language : en
Publisher:
Release Date : 1976
Star Catalogues And Their Significance To Geodesy Of The 1980 S written by Mahlon S. Hunt and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with Astronomical instruments categories.
Star catalogues are important tools for the geodesist in the determination of astronomic position and azimuth. Fundamental general catalogues contain the most accurate stellar positions and proper motions. Like other users, the geodesist depends on astrometrists for the discussion and development of fundamental general catalogues. The internationally accepted FK4 is the best contemporary fundamental general catalogue. An expanded and improved revision, the FK5, is planned for completion by 1980. Because of increasing accuracy requirements for astronomic position and azimuth, it is desirable that the geodesist be aware of uncertainties contained within catalogues. The general development of star catalogues is included as background information. (Author).
Astrometry For Astrophysics
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Author : William F. van Altena
language : en
Publisher: Cambridge University Press
Release Date : 2013
Astrometry For Astrophysics written by William F. van Altena and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with Nature categories.
Unifying work by a broad range of experts in the field, this is the most complete textbook on observational astrometry.
New Problems In Astrometry
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Author : International Astronomical Union
language : en
Publisher: Springer
Release Date : 1974-07-31
New Problems In Astrometry written by International Astronomical Union and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 1974-07-31 with Science categories.
Proceedings of IAU Symposium No. 61 held in Perth, Western Australia, 13-17 August 1973
Astronomical And Astrophysical Objectives Of Sub Milliarcsecond Optical Astrometry
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Author : Erik Høg
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-12-01
Astronomical And Astrophysical Objectives Of Sub Milliarcsecond Optical Astrometry written by Erik Høg and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-12-01 with Science categories.
Astrometry is on the threshold of great changes due to the fact that this decade, alone, is witnessing an improvement of stellar positions equivalent to the total improvement of the previous two centuries. The Hipparcos Satellite has concluded its observations, and the catalog is in preparation. Preliminary results assure that the Hipparcos catalog will provide positions, parallaxes and annual proper motions for over 100,000 stars with accuracies of 1.5 milliarcseconds. In addition, the Tycho catalog will provide positions of about 30 milliarcseconds accuracy for over 1 million stars, and annual proper motions with 3 milliarcsecond accuracy will subsequently be ob tained by means of first epoch positions from the Astrographic Catalog. Optical interferometers on the ground are beginning operation, and these instruments can provide observational accuracies of approximately one milliarcsecond. Also, the traditional reference frame based on the Fun damental Catalog of bright stars is being replaced by the extragalactic ref erence frame, based on radio sources with accuracies of one milliarcsecond. Thus, astrometry will change from a fundamental reference frame defined in terms of the dynamical reference frame of the solar system with accuracies of 100 milliarcseconds to a space-fixed, extragalactic reference frame with accuracies of one milliarcsecond. Future astrometric observations should be in the 1 -100 milliarcsecond accuracy range. There are a number of concepts for future astrometric instruments in space. Most of these can provide sub-milliarcsecond astrometric accuracies.
Fundamental Astrometry
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Author : Vladimir Vladimirovich Podobed
language : en
Publisher:
Release Date : 1965
Fundamental Astrometry written by Vladimir Vladimirovich Podobed and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1965 with Astrometry categories.
Astronomical Applications Of Astrometry
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Author : M. A. C. Perryman
language : en
Publisher: Cambridge University Press
Release Date : 2009
Astronomical Applications Of Astrometry written by M. A. C. Perryman and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Nature categories.
An authoritative account of the contributions to science made by the Hipparcos satellite, for astronomers, astrophysicists and cosmologists.