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

(1 point)
Responses

temperature
temperature

apparent magnitude
apparent magnitude

absolute magnitude
absolute magnitude

luminosity

1 answer

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 temperature, which affects its spectral characteristics and the absorption lines observed in its spectrum.