Biographical Encyclopedia of Astronomers

2014 Edition
| Editors: Thomas Hockey, Virginia Trimble, Thomas R. Williams, Katherine Bracher, Richard A. Jarrell, Jordan D. MarchéII, JoAnn Palmeri, Daniel W. E. Green

Seares, Frederick Hanley

  • Richard P. Wilds
Reference work entry

Bornnear Cassopolis, Michigan, USA, 17 May 1873

DiedHonolulu, Hawaii, USA, 20 July 1964

American photometrist Frederick Seares was responsible for a large fraction of the work of measuring accurate apparent brightnesses of stars as part of a multi-observatory project to understand the distribution of stars in the Milky Way. He was the son of Isaac Newton Seares and Ella Ardelia (née Swartwout) Seares, and, after two family moves to Iowa and California, received his BS in 1895 from the University of California (Berkeley). The university later awarded Seares an LLD, and he also had an honorary degree from the University of Missouri.

Seares obtained a position of instructor at the University of California and married Mabel Urmy. Soon, though, he decided to continue his education in Europe, studying first at the University of Berlin for a year and then at the Sorbonne in Paris for another year. Seares then returned to the United States with his family to take a position of professor of...

This is a preview of subscription content, log in to check access.

Selected References

  1. Hale, George E., Frederick H. Seares, Adriaan van Maanen, and Frederick Ellerman (1918). “The General Magnetic Field of the Sun: Apparent Variation of Field-Strength with Level in the Solar Atmosphere.” Astrophysical Journal 47: 206–254.ADSCrossRefGoogle Scholar
  2. Seares, Frederick H. (1913). “The Photographic Magnitude Scale of the North Polar Sequence.” Astrophysical Journal 38: 241–267.ADSCrossRefGoogle Scholar
  3. — (1914). “Photographic Photometry with the 60-Inch Reflector of the Mount Wilson Solar Observatory.” Astrophysical Journal 39: 307–340.Google Scholar
  4. — (1915). “Photographic and Photo-visual Magnitudes of Stars Near the North Pole.” Astrophysical Journal 41: 206–236.Google Scholar
  5. — (1915). “Color-Indices in the Cluster NGC 1657.” Astrophysical Journal 42: 120–132.Google Scholar
  6. — (1931). “Effect of Space Absorption on the Calculated Distribution of Stars.” Astrophysical Journal 74: 91–100.Google Scholar
  7. — (1931). “A Numerical Method of Determining the Space Density of Stars.” Astrophysical Journal 74: 268–287.Google Scholar
  8. — (1938). “Photoeletric Magnitudes and the International Standards.” Astrophysical Journal 87: 257–279.Google Scholar
  9. — (1940). “The Dust of Space.” Publications of the Astronomical Society of the Pacific 52: 80–115.Google Scholar
  10. Seares, Frederick H. and Edwin P. Hubble (1920). “The Color of the Nebulous Stars.” Astrophysical Journal 52: 8–22.ADSCrossRefGoogle Scholar
  11. Seares, Frederick H. and Mary C. Joyner (1943). “Effective Wave Lengths of Standard Magnitudes; Color Temperature and Spectral Type.” Astrophysical Journal 98: 302–330.ADSCrossRefGoogle Scholar
  12. — (1952). “Photovisual Magnitudes and Color Indices in 42 Kapteyn Selected Areas.” Publications of the Astronomical Society of the Pacific 64: 202–204.Google Scholar
  13. Seares, Frederick H., Frank E. Ross, and Mary C. Joyner (1941). Magnitudes and Colors of Stars North of +80°. Carnegie Institution of Washington Publication No. 532. Washington, D.C.: Carnegie Institution of Washington.Google Scholar
  14. Seares, Frederick H., P. J. van Rhijn, Mary C. Joyner, and Myrtle L. Richmond (1925). “Mean Distribution of Stars According to Apparent Magnitude and Galactic Latitude.” Astrophysical Journal 62: 320–374.ADSCrossRefGoogle Scholar
  15. Seares, Frederick H., J. C. Kapteyn, P. J. van Rhijn, Mary C. Joyner, and Myrtle L. Richmond (1930). Mount Wilson Catalogue of Photographic Magnitudes in Selected Areas 1–139. Carnegie Institution of Washington Publication No. 402. Washington, D.C.: Carnegie Institution of Washington.Google Scholar

Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.American Astronomical SocietyLawrenceUSA