The luminosity class of a star is related to its:

Name: The luminosity class of a star is related to its:
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The luminosity class of a star is related to its radius. Luminosity class is a classification of stars based on their spectral features and their size. Class I stars are known as supergiants and are the largest, while class V stars are known as main-sequence stars and are of average size. Therefore, it can be concluded that luminosity class is related to the size, or radius, of a star.

The Luminosity Class of a Star Is Related to Its