Kaler, James B. Department of Astronomy, College of Liberal Arts and Sciences, University of Illinois, Urbana-Champaign, Illinois.
Last reviewed:June 2020
- Standard sequence
- Spectral variation with temperature
- Spectral variation with composition
- Morgan-Keenan-Kellman system
- Related Primary Literature
- Additional Reading
A label used to indicate the physical and chemical characteristics of a star, as indicated by study of the star's spectrum. Stars possess a remarkable variety of spectra, some simple, others extraordinarily complex. To understand the natures of the stars, it was first necessary to bring order to the subject and to classify the spectra.
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