Astronomisches Rechen-Institut Heidelberg

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ARI-Heidelberg Mitteilungen Serie A, No. 135

Author(s): Fricke, W.
Title: Definition and Practical Realization of the Reference Frame in the FK5 - The Role of Planetary Dynamics and Stellar Kinematics in the Definition
Source: In: Reference Coordinate Systems for Earth Dynamics, Proc. IAU Colloq. 56, Warsaw, Poland, 8-12 September 1980; E.M. Gaposchkin, B. Kolaczek (eds.), Astrophys. Space Sci. Lib. 86, Reidel, Dordrecht, p. 331-340
Year: 1981
Abstract: The formulation of the fundamental reference system to be represented by the FK5 includes the determination of the equinox and equator on the basis of planetary dynamics and the application of the new expressions for the general precession in longitude adopted in the IAU (1976) System of Astronomical Constants. The role of hypotheses which entered the determination of the lunisolar precession is explained. Results are presented for the equinox and equator of the FK5 which are based on observations of the Sun, planets, and lunar occultations.
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