spectral type

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A means of classifying stars according to the details of their spectrum. The spectral type of a star depends largely on its surface temperature, and hence is also a guide to its colour, the hottest stars being the bluest and the coolest ones the reddest. The system of spectral types currently used is the Morgan–Keenan classification. See spectral classification.

Subjects: Astronomy and Astrophysics.

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