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Spectral Types

Spectral Types

This website, containing information from the Sloan Digital Sky Survey, provides projects and activities for advanced astronomy students. In this section students find the wavelengths emitted by electron transitions between energy levels in various elements. They will also learn about how astronomers classify stars according to the spectral star sequence: O B A F G K M. There also contains a follow up exercise that teaches students about dual peak wavelengths in multiple star systems.


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