scholarly journals Proceedings of the Joint Discussion: Arguments in Favor of the Revision of the Conventional System of Astronomical Constants

1966 ◽  
Vol 12 (2) ◽  
pp. 604-606
Author(s):  
W. Fricke
Keyword(s):  
Executive Committee ◽  
Working Group ◽  
General Assembly ◽  
Conventional System ◽  
International Astronomical Union ◽  
International Astronomical ◽  
Astronomical Constants

The Chairman, W. Fricke, President of Commission 4, opened the Joint Discussion by drawing attention to the purpose and proposed procedure for the meeting. The Joint Discussion had been arranged by the Executive Committee of the Union in order to avoid the necessity for separate discussions by each Commission that was affected by the Report of the Working Group on the IAU System of Astronomical Constants. The Organizing Committee therefore proposed the following resolution:‘The members of the IAU at this Joint Discussion recommend to the Executive Committee that the following resolution be put before the General Assembly: “The International Astronomical Union endorses the final list of constants prepared by the Working Group on the System of Astronomical Constants and recommends that it be used in the national and international astronomical ephemerides at the earliest practicable date.’”

scholarly journals Proceedings of the Joint Discussion: Parameters of the Earth's Gravitational Field

1966 ◽  
Vol 12 (2) ◽  
pp. 607-609
Author(s):  
A. H. Cook
Keyword(s):  
Gravitational Field ◽  
Executive Committee ◽  
Working Group ◽  
General Assembly ◽  
International Astronomical Union ◽  
Earth’S Gravitational Field ◽  
International Astronomical ◽  
Astronomical Constants

The Chairman, W. Fricke, President of Commission 4, opened the Joint Discussion by drawing attention to the purpose and proposed procedure for the meeting. The Joint Discussion had been arranged by the Executive Committee of the Union in order to avoid the necessity for separate discussions by each Commission that was affected by the Report of the Working Group on the IAU System of Astronomical Constants. The Organizing Committee therefore proposed the following resolution:‘The members of the IAU at this Joint Discussion recommend to the Executive Committee that the following resolution be put before the General Assembly: “The International Astronomical Union endorses the final list of constants prepared by the Working Group on the System of Astronomical Constants and recommends that it be used in the national and international astronomical ephemerides at the earliest practicable date.’”

scholarly journals Proceedings of the Joint Discussion: Masses of the Principal Planets

1966 ◽  
Vol 12 (2) ◽  
pp. 609-614
Author(s):  
G. M. Clemence
Keyword(s):  
Executive Committee ◽  
Working Group ◽  
General Assembly ◽  
International Astronomical Union ◽  
International Astronomical ◽  
Astronomical Constants

The Chairman, W. Fricke, President of Commission 4, opened the Joint Discussion by drawing attention to the purpose and proposed procedure for the meeting. The Joint Discussion had been arranged by the Executive Committee of the Union in order to avoid the necessity for separate discussions by each Commission that was affected by the Report of the Working Group on the IAU System of Astronomical Constants. The Organizing Committee therefore proposed the following resolution:‘The members of the IAU at this Joint Discussion recommend to the Executive Committee that the following resolution be put before the General Assembly: “The International Astronomical Union endorses the final list of constants prepared by the Working Group on the System of Astronomical Constants and recommends that it be used in the national and international astronomical ephemerides at the earliest practicable date.’”

scholarly journals Proceedings of the Joint Discussion: Report of the Proceedings

1966 ◽  
Vol 12 (2) ◽  
pp. 599-604
Author(s):  
G. A. Wilkins
Keyword(s):  
Executive Committee ◽  
Working Group ◽  
General Assembly ◽  
International Astronomical Union ◽  
International Astronomical ◽  
Astronomical Constants

The Chairman, W. Fricke, President of Commission 4, opened the Joint Discussion by drawing attention to the purpose and proposed procedure for the meeting. The Joint Discussion had been arranged by the Executive Committee of the Union in order to avoid the necessity for separate discussions by each Commission that was affected by the Report of the Working Group on the IAU System of Astronomical Constants. The Organizing Committee therefore proposed the following resolution:‘The members of the IAU at this Joint Discussion recommend to the Executive Committee that the following resolution be put before the General Assembly: “The International Astronomical Union endorses the final list of constants prepared by the Working Group on the System of Astronomical Constants and recommends that it be used in the national and international astronomical ephemerides at the earliest practicable date.’”

scholarly journals The first President of the IAU, Benjamin Baillaud

2018 ◽  
Vol 13 (S349) ◽  
pp. 139-146
Author(s):  
Jean-Louis Bougeret
Keyword(s):  
Celestial Mechanics ◽  
Executive Committee ◽  
International Research ◽  
Research Council ◽  
International Committee ◽  
General Assembly ◽  
International Level ◽  
International Astronomical Union ◽  
International Astronomical ◽  
The University

AbstractBenjamin Baillaud was appointed president of the First Executive Committee of the International Astronomical Union which met in Brussels during the Constitutive Assembly of the International Research Council (IRC) on July 28th, 1919. He served in this position until 1922, at the time of the First General Assembly of the IAU which took place in Rome, May 2–10. At that time, Baillaud was director of the Paris Observatory. He had previously been director of the Toulouse Observatory for a period of 30 years and Dean of the School of Sciences of the University of Toulouse. He specialized in celestial mechanics and he was a strong supporter of the “Carte du Ciel” project; he was elected chairman of the permanent international committee of the Carte du Ciel in 1909. He also was the founding president of the Bureau International de l’Heure (BIH) and he was directly involved in the coordination of the ephemerides at an international level. In this paper, we present some of his activities, particularly those concerning international programmes, for which he received international recognition and which eventually led to his election in 1919 to the position of first president of the IAU. We also briefly recount the very first meetings and years of the IAU.

scholarly journals Issues of Time for Reference Systems

1993 ◽  
Vol 156 ◽  
pp. 357-362
Author(s):  
P. K. Seidelmann
Keyword(s):  
General Assembly ◽  
Coordinate Systems ◽  
International Astronomical Union ◽  
Sidereal Time ◽  
Coordinate Time ◽  
International Astronomical ◽  
Definition Of ◽  
T Values ◽  
Barycentric Coordinate ◽  
Astronomical Constants

At the International Astronomical Union General Assembly in 1991 the terminologies Geocentric Coordinate Time (TCG) and Barycentric Coordinate Time (TCB) were introduced as the time coordinates of four dimensional geocentric and barycentric coordinate systems, respectively. The reasons for these time-like arguments and their applications will be discussed. The relationships between the different time-like arguments will be discussed along with their applications and relationships to the astronomical constants.Since these time-like arguments have secular differences, there are new issues to be resolved. These new issues include the definition of the epoch J2000.0, relationship between mean and apparent sidereal time, the time-like argument for specifying constants, the definition and future use of ephemeris time, delta T values and the transition to, or future use of, TCG, TCB and TDB.

scholarly journals Sofa: Standards of Fundamental Astronomy: Progress and Plans

1998 ◽  
Vol 11 (1) ◽  
pp. 191-193
Author(s):  
P.T. Wallace
Keyword(s):  
Working Group ◽  
General Assembly ◽  
International Astronomical Union ◽  
International Astronomical ◽  
Division 1 ◽  
Fundamental Astronomy ◽  
Standard Models

At its 1994 General Assembly, the International Astronomical Union resolved to introduce new arrangements to establish and maintain an accessible and authoritative set of constants, algorithms and procedures that implement standard models used in fundamental astronomy. The initiative was the responsibility of the Working Group on Astronomical Standards (WGAS), part of Division 1 of the IAU, and the set of procedures and constants was named SOFA, for “Standards Of Fundamental Astronomy”. The background to the IAU Resolution is given by Fukushima (1995) and Wallace (1996).

scholarly journals Final Session

1971 ◽  
Vol 14 (2) ◽  
pp. 54-76
Author(s):  
O. Heckmann
Keyword(s):  
Executive Committee ◽  
General Assembly ◽  
International Astronomical Union ◽  
Final Session ◽  
International Astronomical ◽  
First Session

The Chairman referred to the General Secretary’s motion made at the first session and put to the vote of the General Assembly the new Statutes and By-laws of the International Astronomical Union, as proposed by the Executive Committee. The Statutes and By-laws were adopted by show of hands of the official representatives of Adhering Organizations.

scholarly journals Working Group on Future Large Scale Facilities in Astronomy

1997 ◽  
Vol 23 (1) ◽  
pp. 59-60
Author(s):  
H. R. Butcher
Keyword(s):  
Executive Committee ◽  
Working Group ◽  
Large Scale ◽  
General Assembly ◽  
The Hague

The idea for a Working Group (WG) on “Future Large Scale Facilities in Astronomy” grew from a discussion held on 20 August, 1994, during the IAU General Assembly in The Hague. The IAU Executive Committee approved its formation in August, 1995, and its composition in October, 1995. The WG will remain active at least until the XXIIIrd General Assembly in Kyoto in 1997. Members are: H. Butcher (Chairman), R. Ekers, B. Fort, N. Kardashev, M. Longair, F. Pacini, L. Rodriguez, G. Swarup, Y. Tanaka, H. Tananbaun, and L. Woltjer (ex officio). The WG carries out its work mostly by email and FAX.

scholarly journals American Astronomers in Belgium, 1919: Snapshots from the Founding of the IAU

2018 ◽  
Vol 13 (S349) ◽  
pp. 406-418
Author(s):  
James M. Lattis ◽  
Anthony J. Lattis
Keyword(s):  
Executive Committee ◽  
Research Council ◽  
National Research Council ◽  
Council Meeting ◽  
International Astronomical Union ◽  
University Of Illinois ◽  
University Of Wisconsin ◽  
International Astronomical ◽  
The Usa ◽  
The University

AbstractThe USA delegation to the July 1919 International Research Council meeting in Brussels included Joel Stebbins, then professor of astronomy and observatory director at the University of Illinois, as secretary of the executive committee appointed by the National Research Council. Stebbins, an avid photographer, documented the travels of their party as the American astronomers attended the meeting and later toured devastated towns, scarred countryside, and battlefields only recently abandoned. Published reports of the meeting afterward attest to the impression left on the American visitors, and the photographs by Stebbins give us a glimpse through their own eyes. Selected photographs, recently discovered in the University of Wisconsin Archives and never before publicly seen, will be presented along with some commentary on their significance for the International Astronomical Union, which took shape at that 1919 meeting.

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