Edwin Powell Hubble1 January 1925
Hubble's results on Cepheid variables in spiral nebulae are formally presented at a joint meeting of the American Astronomical Society and the American Association for the Advancement of Science.
United States of America · Science / Astronomy. Chronological records rendered directly from the World History Database.
Hubble's results on Cepheid variables in spiral nebulae are formally presented at a joint meeting of the American Astronomical Society and the American Association for the Advancement of Science.
This factsheet is generated from stored World History Database records matching the country, broad category, detailed category and exact Event value shown above. Duplicate display records are collapsed; database wording is otherwise preserved. Source provenance varies by record, so formal academic citation should be checked against the relevant primary source, archive or specialist historical reference.