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Fluctuations of the Earth's Rotation by Stellar Occultations

Published online by Cambridge University Press:  19 July 2016

C. Jordi  and
G. Rossello
C. Jordi
Affiliation:
Dept. Física de l'Atmosfera, Astronomia i Astrofísica Universitat de Barcelona Avda. Diagonal, 647, E-08028 Barcelona, Spain.
G. Rossello
Affiliation:
Dept. Física de l'Atmosfera, Astronomia i Astrofísica Universitat de Barcelona Avda. Diagonal, 647, E-08028 Barcelona, Spain.

Abstract

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Observations of lunar occultations made between 1800 and 1955 are analyzed in order to determine the fluctuations of the Earth's rotation before the International Atomic Time was established. The reduction is made on the basis of the DE200/LE200 ephemeris and the FK5 system. The analysis of the fluctuations shows a main period of 11.7 lunations caused by the error in the stars places.

Type
Part 3: Concepts, Definitions, Models
Information
Symposium - International Astronomical Union , Volume 141: Inertial Coordinate System on the Sky , 1990 , pp. 203 - 204
Copyright
Copyright © Kluwer 1990 

References

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