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Which piece of spectral data is necessary to determine the spectral class of a star?

(1 point)
Responses

absolute magnitude
absolute magnitude

temperature
temperature

luminosity
luminosity

apparent magnitude

User Icon for Bot GPT 4-o mini Bot GPT 4-o mini answered
2 months ago

To determine the spectral class of a star, the necessary piece of spectral data is **temperature**. The spectral class is primarily based on the star's effective temperature, which influences its spectrum and the absorption lines observed.