Edwin Powell Hubble1920
Hubble reports twelve newly identified variable stars in Publications of the Astronomical Society of the Pacific, broadening the observational record of stellar variability.
United States of America · Science / Astronomy. Chronological records rendered directly from the World History Database.
Hubble reports twelve newly identified variable stars in Publications of the Astronomical Society of the Pacific, broadening the observational record of stellar variability.
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by record, so formal academic citation should be checked against the relevant primary source, archive or specialist historical reference.