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Fundamental stellar photometry for standards of spectral type on the revised system of the Yerkes spectral atlas
- H. L. Johnson, W. W. Morgan
- Physics
- 1 May 1953
Photometry and spectroscopy are among the most important and fundamental types of astronomical observations. By the middle of the twentieth century most spectral classification was defined in terms…
The Law of Interstellar Reddening and Absorption.
- W. A. Hiltner, H. L. Johnson
- Physics
- 1 September 1956
The Hyades and Coma Berenices Star Clusters.
- H. L. Johnson, C. F. Knuckles
- Physics
- 1 September 1955
Communications of the Lunar and Planetary Laboratory. Volume 4
- B. Iriarte, H. L. Johnson, R. I. Mitchell, W. Wisniewski
- Physics
- 1966
A Heavily Obscured O-Association in Cygnus.
- H. L. Johnson, W. W. Morgan
- Physics
- 1 March 1954
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