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As an accurate knowledge of theposition of the fixed stars is of the greatest importance, being the basis and foundation of astronomy, it is no wonder that the astronomers of different nations have given great attention to this matter.

philosophical transactions of the royal society of london

XIV. An inquiry into the quantity and direction of the proper motion of Arcturus; with some remarks on the diminution of the obliquity of the ecliptic: By Thomas Hornsby, M. A. Savilian Professor of Astronomy in the University of Oxford, and F. R. S