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7. Purpose and Requirements for Proper Motions of Faint Stars
Published online by Cambridge University Press: 02 August 2017
Extract
These may be classed under four headings:
(a) Systematic motions at different points in space.
(b) Distribution of ‘random’ motions.
(c) Check on distances of faint stars as determined by spectrographic methods.
(d) Distances and motions of special types of stars.
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- Part IV Symposia
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- Copyright © Cambridge University Press 1954