Reference Systems


Book Description




Explanatory Supplement to the Astronomical Almanac


Book Description

This well-schooled text provides a detailed description of how to perform practical astronomy or spherical astronomy. It is an authoritative source on astronomical phenomena and calendars.




Highlights of Astronomy, Volume 11A


Book Description

Since 1967, the main scientific events of the General Assemblies of the International Astronomical Union have been published in the separate series, Highlights of Astronomy. The present Volume 11 presents the major scientific presentations made at the XXIIIrd General Assembly, August 18-30, 1997, in Kyoto, Japan. The two volumes (11A + B) contain the text of the three Invited Discourses as well as the proceedings or extended summaries of the 21 Joint Discussions and two Special Sessions held during the General Assembly.







Transactions of the International Astronomical Union


Book Description

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.




Spherical Astronomy


Book Description

This introductory textbook assumes no prior knowledge of classical astronomy but is sufficiently comprehensive to be useful as a background reference work. It provides the essential background on mathematical technique and coordinate systems and discusses in detail, refraction, aberration, stellar parallax, precession, nutation and proper motion.




Highlights of Astronomy


Book Description

The year 1973 marked the highest peak of IAU activity up to now. Besides the Gen eral Assembly in Sydney, and the Extraordinary General Assembly in Poland, there were held eleven IAU Symposia and one Colloquium. Several IAU Publications cover this activity. The Proceedings of the Symposia are published in separate Volumes, while the Transactions of the General Assembly and of the Extraordinary General Assembly contain short reports of the Commission meetings, the administrative sessions, and the opening ceremonies. The present Volume covers some of the scientific Highlights of the General As sembly and of the Extraordinary General Assembly. It contains five Invited Dis courses given in Sydney and Poland, some selected papers, and the Joint Discussions at the General Assembly of Sydney. Of course, there were many more papers of special interest presented in Sydney that could not be included in this Volume. Their titles can be seen in the reports of the various Commissions. It is regrettable that the Invited Discourses of C. H. Townes (Interstellar Molecules) and F. J. Low (Infrared Astronomy) were not submitted for publication. Also only five papers or abstracts of the Joint Discussion on the 'Origins of the Moon and Satellites' have been available. Despite these minor shortcomings, I believe that the present Volume is faithful to its title: it gives a substantial part of the Highlights of Astronomy in 1973.




Deus Ordiri Fundamentum


Book Description

There is a unifying Pattern that underlies much if not all of science, which manifests itself in the measures of dimension; i.e. time, distance, volume, mass, and of those measures that derive from them. This Pattern arises from a simple geometric progression, based on the numbers 2 and 3. Deus Ordiri Fundamentum—“God Begins, Lays the Order of the Foundation”—traces this Pattern through much of modern science, including: astronomy, physics, geodesy, metrology, cartography, etc., and arrives at the almost inescapable conclusion that mankind did not devise this system, since it is all too perfect; rather, it was given to him by the Creator of the cosmos. Deus Ordiri Fundamentum then proceeds to examine several world-renowned ancient monuments and documents a startling sophistication of knowledge embedded in them that embodies many of the measures from the Pattern. These monuments were specifically designed and built to memorialize much of this vast knowledge—the collected inheritance of a sophisticated civilization. Number and Geometry were central to this process. And, finally, Deus Ordiri Fundamentum examines six carved stelae in the Step Pyramid complex of Saqqara, Egypt, and finds that they hold mankind’s deepest held beliefs and understandings, regarding the origins and manifestations of time and the other dimensions that are the framework of our perceived reality.