Edwin Powell Hubble1929
Hubble publishes his extensive Astrophysical Journal study of Messier 31 as a stellar system, analysing its resolved stars, variables and structure as an external galaxy.
United States of America · Science / Astronomy. Chronological records rendered directly from the World History Database.
Hubble publishes his extensive Astrophysical Journal study of Messier 31 as a stellar system, analysing its resolved stars, variables and structure as an external galaxy.
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