| Harold D. Babcock AKA Harold Delos Babcock Born: 24-Jan-1882
Birthplace: Edgerton, WI
Died: 8-Apr-1968
Location of death: Pasadena, CA
Cause of death: Heart Failure
Gender: Male
Race or Ethnicity: White
Sexual orientation: Straight
Occupation: Astronomer Nationality: United States
Executive summary: Solar radiation Astronomer Harold D. Babcock studied solar radiation and atomic spectra, and extended Henry Augustus Rowland's measurements of the solar system into the infrared and ultraviolet. Working with his son, astronomer Horace W. Babcock, he invented the solar magnetograph, a scientific instrument that allowed measurement of magnetic fields on the surface of the sun to unprecedented precision. Father: Emilus W. Babcock (grocer, b. 9-Jun-1835, d. 15-Feb-1904)
Mother: Mary Eliza Brown Babcock (b. 30-Jun-1839, m. 26-Aug-1861, d. 12-Dec-1931)
Brother: William Babcock (b. 28-Apr-1863, d. 15-Sep-1954)
Sister: Bertha Babcock (b. 28-Dec-1865, d. 1-Jul-1933)
Brother: Clarence Henry Babcock (merchant, b. 22-Feb-1868, d. 13-Jul-1928)
Brother: John Babcock (b. 26-Oct-1870, d. 3-May-1891)
Brother: Charles Babcock (b. 18-Dec-1874, d. 5-Nov-1878)
Brother: Ernest Brown Babcock (geneticist, b. 10-Jul-1877, d. 8-Dec-1954)
Wife: Mary Henderson Babcock (one child)
Son: Horace W. Babcock (astronomer, b. 13-Sep-1912, d. 29-Aug-2003)
High School: Los Angeles High School, Los Angeles, CA (1901)
University: BS Physics, University of California at Berkeley (1907)
Scholar: Physics, Mt. Wilson Observatory (1909-48)
Bruce Medal 1953
National Institute of Standards and Technology 1907-09
American Association for the Advancement of Science
American Astronomical Society
American Physical Society
National Academy of Sciences
National Research Council
Royal Astronomical Society
Royal Society
Manhattan Project
Asteroid Namesake 3167 Babcock (namesake shared with son)
English Ancestry
German Ancestry
Author of books:
The Solar Spectrum (1947, with Charlotte E. Moore)
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