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“Proper Motions” of Extragalactic Sources and the Precession Constant
Published online by Cambridge University Press: 07 August 2017
Abstract
From the observational catalogues of the extragalatic sources, the common sources with larger observational intervals are selected. After a reduction of optical catalogue systems to the FK5, the “proper motions” of these sources are obtained in the FK5 system. With these values the correction of the precession constant has been estimated and compared with that obtained from the new techniques.
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- Celestial Reference Frame
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- Copyright © Kluwer