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Bernard Lyot

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Citizenship
  
France

Name
  
Bernard Lyot

Nationality
  
French

Role
  
Astronomer


Fields
  
Astronomy

Education
  
University of Paris

Alma mater
  
University of Paris

Known for
  
Sun

Bernard Lyot wwwastroumontrealcapaulchargrpshistoirenew

Born
  
February 27, 1897 Paris, France (
1897-02-27
)

Died
  
April 2, 1952, Cairo, Egypt

Notable awards
  
Gold Medal of the Royal Astronomical Society

Awards
  
Bruce Medal, Gold Medal of the Royal Astronomical Society, Henry Draper Medal

Observatório Solar Bernard Lyot


Bernard Ferdinand Lyot (27 February 1897, in Paris – 2 April 1952, in Cairo) was a French astronomer.

Contents

Bernard Lyot The Bruce Medalists Bernard Lyot

Biography

His interest in astronomy started in 1914. He soon acquired a 4-inch (100 mm) telescope and soon upgraded to a 6-inch (150 mm). From graduation in 1918 until 1929, he worked as a demonstrator at the École Polytechnique and studied engineering, physics, and chemistry at the University of Paris.

From 1920 until his death he worked for the Meudon Observatory, where in 1930 he earned the title of Joint Astronomer of the Observatory. After gaining the title, he earned a reputation of being an expert of polarized and monochromatic light. Throughout the 1930s, he labored to perfect the coronagraph, which he invented to observe the corona without having to wait for a solar eclipse. In 1938, he showed a movie of the corona in action to the International Astronomical Union. In 1939, he was elected to the French Academy of Sciences. He became Chief Astronomer at the Meudon Observatory in 1943 and received the Bruce Medal in 1947.

Lyot was the President of the Société astronomique de France (SAF), the French astronomical society, from 1945-1947.

He suffered a heart attack while returning from an eclipse expedition in Sudan and died on 2 April 1952, at the age of 55.

Observations and Achievements on Pic du Midi

  • Lunar soil behaves like volcanic dust.
  • Mars has sandstorms.
  • Improved his coronagraph.
  • Made motion pictures of solar prominences and the corona.
  • Found spectral lines in the corona.
  • Inventions

  • Coronagraph
  • Lyot filter
  • Lyot stop
  • Lyot depolarizer
  • Awards and honors

    Awards

  • Lalande Prize from the French Academy of Sciences
  • Janssen Medal from the French Academy of Sciences (1930)
  • Prix Jules Janssen, the highest award of the Société astronomique de France(1932)
  • Gold Medal of the Royal Astronomical Society (1939)
  • Howard N. Potts Medal (1942)
  • Bruce Medal (1947)
  • Henry Draper Medal of the National Academy of Sciences (1951)
  • Named for him

  • Lyot (lunar crater).
  • Lyot (Martian crater).
  • Minor planet 2452 Lyot.
  • References

    Bernard Lyot Wikipedia