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luminosity class


noun Astronomy.

a classification of stars of a given spectral type according to their luminosity, breaking them down into dwarfs, giants, and supergiants.

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Nearby words

luminescent, luminiferous, luminism, luminophore, luminosity, luminosity class, luminous, luminous efficacy, luminous efficiency, luminous emittance, luminous energy
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019