The luminosity class is assigned to a star by studying the absorption lines in the spectrum of the star.
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Q9: All stars produce an absorption spectra.
Q10: Which star has the largest diameter?
A) white
Q11: The formula Q12: If a star has an apparent magnitude Q13: Recently discovered brown dwarfs have spectra similar Q15: S tars of low luminosity will always Q16: The Hertzsprung-Russell Diagram is a plot for Q17: The spectral classification of stars started with Q18: A star's apparent magnitude is a measure Q19: If two stars are emitting the same
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