Walter Baade1952
Shows that two classes of Cepheid variables had been confused, leading to a major upward revision of the distance scale for Andromeda and other galaxies.
United States · Science / Astronomy. Chronological records rendered directly from the World History Database.
Shows that two classes of Cepheid variables had been confused, leading to a major upward revision of the distance scale for Andromeda and other galaxies.
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