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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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