1952
Andromeda Distance Scale Revised
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.
Historical place archive
Browse historical events and people recorded at Rome in United States. The records below are rendered directly from the World History Database into this page's initial HTML.
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.
Provenance
These entries are generated from stored World History Database records whose country and place fields match United States and Rome. Names, dates, event labels and descriptions are reviewed and normalised as the database develops. Historical place names may not match modern administrative boundaries.
This database is a research index. For formal scholarly citation, verify individual claims against appropriate primary, archival, academic or specialist sources.