Edwin Hubble6 October 1923
Photographs M31 with the 100-inch Hooker telescope and records the star later recognized as Cepheid variable V1 on the famous VAR photographic plate.
United States of America · Science / Astronomy. Chronological records rendered directly from the World History Database.
Photographs M31 with the 100-inch Hooker telescope and records the star later recognized as Cepheid variable V1 on the famous VAR photographic plate.
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