APOGEE Spectral Sequence

Exemplar APOGEE spectra for stars of O, B, A, F, G, K, and M spectral types. Figure by S. Chojnowski.

Image Credit: Sloan Digital Sky Survey

License: Standard SDSS image license

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Funding for the SDSS is provided by the Alfred P. Sloan Foundation, the Participating Institutions, and the U.S. Department of Energy Office of Science.