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An infrared survey of the Southern Milky Way

Published online by Cambridge University Press:  14 August 2015

B. E. Westerlund*
Affiliation:
Mount Stromlo Observatory

Extract

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The determination by optical means of the galactic structure at great distances from the Sun is becoming more and more important. Most optical investigations, using ordinary techniques — objective-prism survey in the blue spectral region + UBV photometry — do not reach very far out owing to the heavy obscuration in most directions in the galactic plane. Only a few very luminous OB stars and some rare supergiants have been identified in some selected regions at distances exceeding 4 kpc.

Type
Section 1: The Galaxy
Copyright
Copyright © Australian Academy of Science 1964 

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