Question

question 1 1 pts stars with the same spectral class will have the same __________. luminosity class surface temperature radius luminosity mass

Explanation:

Spectral class of stars is determined by the surface temperature. Stars with the same spectral class have similar surface temperatures as the spectral classification system (O, B, A, F, G, K, M) is primarily based on temperature - related characteristics like the absorption lines in their spectra which are influenced by temperature. Luminosity class (related to size and density, e.g., supergiants, main - sequence stars), radius, luminosity (depends on radius and temperature: $L = 4\pi R^{2}\sigma T^{4}$ where $L$ is luminosity, $R$ is radius, $\sigma$ is Stefan - Boltzmann constant, $T$ is temperature), and mass (which can vary for stars of the same spectral class as there are different evolutionary paths for stars with similar temperatures) are not directly determined by the spectral class alone.

Answer:

surface temperature