Galaxy Redshift1912
Slipher measures a large redshift for the Andromeda nebula, beginning the observational path toward an expanding universe
Historical person
Vesto Melvin Slipher Biography
Historical biography and chronological timeline for Vesto Melvin Slipher, based on 5 World History Database records associated with United States.
5 records1912–19345 events2 places
Chronological biography
1912
First Radial Velocity of Andromeda17 September 1912
Measures the Doppler shift of M31 and finds a very large approach velocity, the first radial-velocity measurement made for a spiral nebula.
1929
Discovery of Pluto1929
Lowell Observatory director Vesto Melvin Slipher assigns Clyde Tombaugh the task of searching for Planet X.
1930
Naming of Pluto1 May 1930
Lowell Observatory director Vesto Slipher announces Pluto as the proposed name for the newly discovered world.
1934
Methane in Neptune Atmosphere1934
Spectroscopic work identifies strong methane absorption in Neptune's atmosphere and helps explain the planet's visible colour.
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.