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OB Stars.
In: Salem Press Encyclopedia of Science, 2022-01-31, S. 3
Online
Nachschlagewerk
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Zugriff:
In the early twentieth century, astronomers at the Harvard Observatory developed a method of classifying stars based on their surface temperatures. This method was called spectral classification because they used the stars’ emission spectra to determine their temperature. The Harvard spectral classification divided stars into seven classes: O, B, A, F, G, K, and M. O stars have the highest surface temperature, and M stars have the lowest. Later, each class was divided into numbered subclasses. "OB stars" refers collectively to the short-lived O and B stars. These two types are typically found together.
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OB Stars.
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Autor/in / Beteiligte Person: | Ungvarsky, Janine |
Zeitschrift: | Salem Press Encyclopedia of Science, 2022-01-31, S. 3 |
Veröffentlichung: | 2022 |
Medientyp: | Nachschlagewerk |
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