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An infrared survey of the Southern Milky Way
Published online by Cambridge University Press: 14 August 2015
Extract
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
- Information
- Symposium - International Astronomical Union , Volume 20: The Galaxy and the Magellanic Clouds , 1964 , pp. 160 - 167
- Copyright
- Copyright © Australian Academy of Science 1964
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