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STELLAR SPECTRUM [1 record]

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Record 1 1977-09-26

English

Subject field(s)
  • Astronomy
OBS

At about the turn of the century, thousands of stellar spectra were available and a more detailed classification was obtained. This classification divided the spectra into classes O, B, A, F, G, K, M, with each major class being subdivided into 10 subclasses.

French

Domaine(s)
  • Astronomie
OBS

La couleur d'une étoile est la résultante d'un mélange de radiations lumineuses dont la décomposition par un prisme fournit le spectre. L'étude des spectres stellaires est à la base de l'astrophysique. Elle permet de connaître notamment les éléments chimiques présents dans les couches externes des étoiles et les conditions physiques dans lesquelles ils se trouvent.

Spanish

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