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II. The Galaxy
Spiral structure
Published online by Cambridge University Press: 14 August 2015
Extract
Investigations of the structural form of the Galaxy are being actively carried on at a number of observatories. The portion of the Galaxy surveyed has been markedly increased since the time of the first Symposium for Coordination of Galactic Research. Many new results have been obtained, particularly in the southern hemisphere; additional observing programs are in the planning stage. New observational techniques for some problems have been found and are under investigation.
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- Copyright © Cambridge University Press 1959