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Author: W. Gliese
Publisher: Springer Science & Business Media
ISBN: 9401021996
Category : Science
Languages : en
Pages : 296
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Book Description
Proceedings of IAU Symposium No. 61 held in Perth, Western Australia, 13-17 August 1973
Author: W. Gliese
Publisher: Springer Science & Business Media
ISBN: 9401021996
Category : Science
Languages : en
Pages : 296
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Book Description
Proceedings of IAU Symposium No. 61 held in Perth, Western Australia, 13-17 August 1973
Author:
Publisher:
ISBN:
Category : Astrometry
Languages : en
Pages : 90
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Book Description
Author: William F. van Altena
Publisher: Cambridge University Press
ISBN: 0521519209
Category : Nature
Languages : en
Pages : 431
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Book Description
Unifying work by a broad range of experts in the field, this is the most complete textbook on observational astrometry.
Author: B. A. Vorontsov-Vel'Yaminov
Publisher: Elsevier
ISBN: 1483159507
Category : Science
Languages : en
Pages : 341
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Book Description
Astronomical Problems: An Introductory Course in Astronomy covers astronomical problems, together with a summary of the theory and the formula to be exercised. The book discusses the types of problems solved with the help of the celestial globe and how to solve astronomical problems. The text tackles problems on interpolation, the celestial sphere, systems of celestial coordinates, and culmination. Problems about the rising and setting of a heavenly body, precession, planetary movement, and parallax and aberration are also considered. The book presents problems about refraction, the apparent motion of the sun, time and longitude, and the calendar. The text also demonstrates problems related to the moon, planets, stars, comets, meteors and meteorites, and the structure of the universe. Miscellaneous problems and problems of artificial celestial bodies are also examined. Teachers and students of astronomy will find the book useful.
Author: Jean Kovalevsky
Publisher: Springer Science & Business Media
ISBN: 3662047306
Category : Science
Languages : en
Pages : 383
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Book Description
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.
Author: Ivan I. Mueller
Publisher: Springer Science & Business Media
ISBN: 940111711X
Category : Science
Languages : en
Pages : 446
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Book Description
In this review talk, I would like to report on the proper motion analysis, which has been recently carried out together with M. Soma and M. Yoshizawa: There has been a persistent demand in astronomy for accurate stellar positions and proper motions, which are represented by an inertial reference system constructed on the basis of a set of consistent astronomical constants. In the reference system the precessional constant plays a primary role. In a series of papers Fricke (1967a,b, 1977a,b) has deter mined the luni-solar precessional correction to Newcomb's value and the fictitious motion of the equinox, which have been adopted in the "IAU (1976) System of Astronomical Con stants". Based on the precessional correction and the equinoctial motion thus established, the fundamental reference system, the FK5 system (Fricke et al. 1988) for positions and proper motions, has been constructed. However, for several years geodetic VLBI (McCarthy & Luzum 1991) and LLR (Williams et at. 1991) observations have been suggesting an additional correction to the luni-solar precessional constant of the IAU (1976) System. That is, these observations indicate the precessional correction of 6. p ~ -0:'30/cent to the FK5 system. But, the observational period ofthe earth orientation is considered to be still insufficient to separate unambiguously the precessional change of the earth orientation from the nutation with the longest period of 18. 6 years.
Author: John N. Bahcall
Publisher: Princeton University Press
ISBN: 9780691016061
Category : Science
Languages : en
Pages : 398
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Book Description
The field of astrophysics is in the midst of a technological renaissance. The emphasis of this collection of essays, composed by a stellar group of astronomers and astrophysicists, is on the current state of our knowledge as a preparation for future unraveling of more mysteries of the universe, which appear most amenable to solution. Aspiring atrophysicists will be enthralled.
Author: Hans G. Walter
Publisher: Springer Science & Business Media
ISBN: 364257260X
Category : Science
Languages : en
Pages : 246
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Book Description
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.
Author: Jean Kovalevsky
Publisher:
ISBN: 1139118293
Category : Nature
Languages : en
Pages : 424
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Book Description
This text details the fundamentals of astrometry at milli- and micro-arcsecond accuracies.
Author: C. de Jager
Publisher: Springer Science & Business Media
ISBN: 9401018812
Category : Science
Languages : en
Pages : 412
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Book Description
