Spectral types of stars (e.g., O, B, A, F, G, K, and M) uniquely define their
A) sizes or radii.
B) absolute magnitudes.
C) luminosities.
D) surface temperatures.

Name: Spectral types of stars (e.g., O, B, A, F, G, K, and M) uniquely define their A) sizes or radii. B) absolute magnitudes. C) luminosities. D) surface temperatures.
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Question

Quizplus · Accepted Answer

Spectral types of stars are primarily determined by their surface temperatures, with the sequence O, B, A, F, G, K, M representing stars from the hottest to the coolest.

Spectral Types of Stars (E