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| Author | : W. Gliese |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 296 |
| Release | : 2012-12-06 |
| Genre | : Science |
| ISBN | : 9401021996 |
Proceedings of IAU Symposium No. 61 held in Perth, Western Australia, 13-17 August 1973
| Author | : B. A. Vorontsov-Vel'Yaminov |
| Publisher | : Elsevier |
| Total Pages | : 341 |
| Release | : 2017-01-31 |
| Genre | : Science |
| ISBN | : 1483159507 |
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 | : William F. van Altena |
| Publisher | : Cambridge University Press |
| Total Pages | : 431 |
| Release | : 2013 |
| Genre | : Nature |
| ISBN | : 0521519209 |
Unifying work by a broad range of experts in the field, this is the most complete textbook on observational astrometry.
| Author | : Jean Kovalevsky |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 400 |
| Release | : 2002-01-22 |
| Genre | : Science |
| ISBN | : 9783540423805 |
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 | : Jean Kovalevsky |
| Publisher | : Cambridge University Press |
| Total Pages | : 422 |
| Release | : 2004-06-03 |
| Genre | : Science |
| ISBN | : 9781139453172 |
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.
| Author | : S. Böhme |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 947 |
| Release | : 2013-11-11 |
| Genre | : Science |
| ISBN | : 3662123436 |
| Author | : G. Contopoulos |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 332 |
| Release | : 2012-12-06 |
| Genre | : Science |
| ISBN | : 9401022089 |
The three years since the Brighton General Assembly have been the most active period in the history of the Union. 33 IAU Symposia and Colloquia, the first Regional Meeting under the Auspices of the IAU, several co-sponsored Meetings and many other special projects. All this culminating with two General Assemblies in two opposite parts of the Earth, Australia and Poland. At the same time the membership of the Union rose to 3200, the number of Commissions to 40, the number of adhering countries to 47. The present Volume gives a general picture of the Union's recent activity. It contains the report of the Executive Committee, the report of the General Assembly, including the Commissions, Meetings, a short report on the Extraordinary General Assembly and an Appendix with the Members and Commissions of the IAU and the approved names of Lunar and Martian features. I take this opportunity to thank all our collaborators, members of the Executive Committee, Presidents of Commissions, Chairmen of Specific Projects, IAU Secrt;taries and all the Members of the IA U for their contribution to keep our Union a living body of active scientists and a big inter national family. G. CoNTOPOULOS General Secretary CONTENTS Page No.
| Author | : Hans G. Walter |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 252 |
| Release | : 2000-07-26 |
| Genre | : Science |
| ISBN | : 9783540674368 |
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 | : Mahlon S. Hunt |
| Publisher | : |
| Total Pages | : 32 |
| Release | : 1976 |
| Genre | : Astronomical instruments |
| ISBN | : |
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).
