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