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The Hertzsprung-Russell diagrams for open clusters

Published online by Cambridge University Press:  14 August 2015

K. A. Barkhatova
K. A. Barkhatova*
Affiliation:
State University, Sverdlovsk, USSR

Extract

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The most important relationship between physical characteristics of stars is the spectrum-luminosity correlation. Investigating the character of this correlation for stars of open clusters, Trumpler has worked out a classification of clusters according to their spectral composition.

Type
I. The Observational Data on the Hertzsprung-Russell Diagram
Information
Symposium - International Astronomical Union , Volume 10: The Hertzsprung-Russell Diagram , 1959 , pp. 19 - 22
Copyright
Copyright © CNRS 1959 

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