spectral type

spectral type
: the type of a star according to a description of its spectrum by means of 10 principal spectral classes, decimal subdivisions of the classes, and symbols indicating special characteristics (as e for stars with bright lines, d for dwarfs, and g for giants)

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  • spectral type — Astron. a category for classifying a star, as A star or G star, according to features of its spectrum, as its shape as a function of temperature and wavelength and its absorption spectrum, that indicate the surface temperature of the star and the …   Universalium

  • spectral type — spec′tral type′ n. astron. a category for classifying a star according to features of its spectrum that indicate its surface temperature and chemical composition • Etymology: 1920–25 …   From formal English to slang

  • spectral type — noun an indication of the physical and chemical characteristics of a star based on the spectrum of light that it emits …   Wiktionary

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  • Spectral line — Continuous spectrum Emission line …   Wikipedia

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