Heber Doust Curtis Biography

Historical biography and chronological timeline for Heber Doust Curtis, based on 2 World History Database records associated with United States.

2 records1917–19202 events2 places

Chronological biography

1917

Andromeda Novae Distance Argument1917

Science / Astronomy · Astronomer · Lick Observatory

Uses the faintness of novae recorded in Andromeda to argue that M31 lies far beyond the Milky Way and is an independent stellar system.

1920

Great Debate Andromeda Argument26 April 1920

Science / Astronomy · Astronomer · Washington DC

Uses spiral nebulae including Andromeda in the Great Debate, arguing that they are external galaxies rather than small objects inside the Milky Way.

Titles and roles

Astronomer

Record provenance

This biography is assembled from World History Database records filtered by country and personal-name fields. Exact duplicate display records are removed. The database is an index rather than a complete narrative biography; formal research should verify entries against relevant primary or specialist sources.