Edwin Powell Hubble1930
Hubble publishes a detailed study of the distribution of luminosity in elliptical nebulae, providing quantitative surface-brightness measurements for systems whose internal structure is not dominated by spiral arms.
United States of America · Science / Astronomy. Chronological records rendered directly from the World History Database.
Hubble publishes a detailed study of the distribution of luminosity in elliptical nebulae, providing quantitative surface-brightness measurements for systems whose internal structure is not dominated by spiral arms.
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