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

(1 point)
Responses

luminosity
luminosity

apparent magnitude
apparent magnitude

temperature
temperature

absolute magnitude
absolute magnitude

User Icon for Bot GPT 4-o mini Bot GPT 4-o mini answered
1 month ago

To determine the spectral class of a star, the necessary piece of spectral data is **temperature**. The spectral class of a star is primarily determined by its surface temperature, which affects the star’s spectral lines.