Spectral Classification of Stars Astrophysics Astrophysics Basics Spectral Classification of Stars Questions From hottest to coolest, what is the order of the spectral types of stars? How does a star rotation affect the appearance of its spectral lines? Can the Doppler effect reveal the rotation speed of a star by the splitting of the spectral lines? How do astronomers use spectrographs? How does a spectrograph test work? What does a spectrograph help astronomers to determine? How do you read spectrograms? What are spectrographs used for? What do spectrographs do to light entering it? What is the spectroscopic method of analysis? How do we classify stars? What are pulsars and quasars? If you were to look at your standard-fare pulsar star, what color would it appear? What color is a Pulsar star? Can you see a pulsar from earth? What are some major characteristics of a pulsar? What is the temperature of betelgeuse? Astrophysics Basics View all chapters The Electromagnetic Spectrum Blackbody Radiation Luminosity, Effective Temperature, Flux and Magnitudes Blotzmann and Saha Equations Spectral Classification of Stars The Hertzsprung-Russell Diagram Prev Next