Morgan

1962 RO. Discovered 1962 Sept. 7 at the Goethe Link Observatory at Brooklyn, Indiana.

Named in honor of William W. Morgan {1906-1994}, whose career at the Yerkes Observatory since 1926 has been devoted to morphology, the classification of objects by their form and structure. He and P. Keenan {see planet (10030)} introduced stellar luminosity classes and the two-dimensional classification of stellar spectra strictly on the basis of the spectra themselves. With D. Osterbrock {see planet (6107)} and S. Sharpless he discovered spiral arms in the Galaxy from spectral studies of O and B stars. Morgan invented the UBV system of magnitudes and colors, and with N. Mayall {see planet (2131)} he developed a spectral classification system for giant galaxies. (M 15089)

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