Bernard Ferdinand Lyot (February 27, 1897 in Paris – April 2, 1952 in Cairo) was a French astronomer. February 27 is the 58th day of the year in the Gregorian Calendar. ... 1897 was a common year starting on Friday (see link for calendar). ... The Eiffel Tower has become a symbol of Paris throughout the world. ... 2 April is the 92nd day of the year (93rd in leap years) in the Gregorian calendar, with 273 days remaining. ... 1952 (MCMLII) was a leap year starting on Tuesday (link will take you to calendar). ... Although technically in Giza, The Great Pyramids have become a symbol of Cairo internationally Cairo (Arabic: القاهرة; transliterated: al-Qāhirah) is the capital city of Egypt (and previously the United Arab Republic) and has a metropolitan area population of approximately 15. ... An astronomer or astrophysicist is a scientist whose area of research is astronomy or astrophysics. ...

His interest in astronomy started in 1914. He soon aquired a 4-inch telescope and soon upgraded to a 6-inch. From graduation in 1918 until 1929, he worked as a demonstrator at the the Ecole Polytechnique. He studied engineering, physics, and chemistry at the University of Paris, and from 1920 until his death he worked for the Meudon Observatory. 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 1930's, 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 recieved the Bruce Medal in 1947. Tragically, he suffered a heart attack while returning for an eclipse expedition in Sudan and died on April 2, 1952, at the age of 55. For other Écoles Polytechniques, see École Polytechnique de Montréal and École Polytechnique Fédérale de Lausanne. ... Engineering applies scientific and technical knowledge to solve human problems. ... Since antiquity, people have tried to understand the behavior of matter: why unsupported objects drop to the ground, why different materials have different properties, and so forth. ... // Introduction The fundamental component of chemistry is that it involves matter in some way (this explains its broad reach). ... The Sorbonne, Paris, in a 17th century engraving The historic University of Paris (French: Université de Paris) first appeared in the second half of the 12th century, but was in 1970 reorganized as 13 autonomous universities (University of Paris I–XIII). ... 1920 (MCMXX) is a leap year starting on Thursday (link will take you to calendar) // Events January January 7 - Forces of Russian White admiral Kolchak surrender in Krasnoyarsk. ... The Paris Observatory (in French, Observatoire de Paris or Observatoire de Paris-Meudon) is the foremost astronomical observatory of France, and one of the largest astronomical centers in the world. ... An example image from SOHO - NASA A coronagraph is a telescopic attachment designed specifically to block out the harsh, direct light from a star, so that nearby objects can be resolved without burning out the telescopes optics. ... The corona is the luminous plasma atmosphere of the Sun extending millions of kilometres into space, most easily seen during a total solar eclipse, but also observable in a coronagraph. ... Logo of the IAU The International Astronomical Union (IAU) unites national astronomical societies from around the world. ... The French Academy of Sciences (Académie des sciences) is a learned society, founded in 1666 by Louis XIV at the suggestion of Jean-Baptiste Colbert, to encourage and protect the spirit of French scientific research. ... The Catherine Wolfe Bruce gold medal is awarded every year by the Astronomical Society of the Pacific for outstanding lifetime contributions to astronomy. ...

Observations and Achievments on Pic du Midi

Lunar soil bevahes like volanic dust. Another Pic du Midi is the Pic du Midi dOssau. ...

Mars has sandstorms. Amongst the findings from the Opportunity rover is the presence of hematite on Mars in the form of small spheres on the Meridiani Planum. ...

Improved his coronagraph. An example image from SOHO - NASA A coronagraph is a telescopic attachment designed specifically to block out the harsh, direct light from a star, so that nearby objects can be resolved without burning out the telescopes optics. ...

Made motion pictures of solar prominences and the corona. For other uses see film (disambiguation) Film refers to the celluliod media on which movies are printed Film — also called movies, the cinema, the silver screen, moving pictures, photoplays, picture shows, flicks, or motion pictures, — is a field that encompasses motion pictures as an art form or as part of... The corona is the luminous plasma atmosphere of the Sun extending millions of kilometres into space, most easily seen during a total solar eclipse, but also observable in a coronagraph. ...

Found spectral lines in the corona. A spectral line is a dark or bright line in an otherwise uniform and continuous spectrum, resulting from an excess or deficiency of photons in a narrow frequency range, compared with the nearby frequencies. ...

Inventions

Coronagraph An example image from SOHO - NASA A coronagraph is a telescopic attachment designed specifically to block out the harsh, direct light from a star, so that nearby objects can be resolved without burning out the telescopes optics. ...

Lyot filter A Lyot filter, named for its inventor Bernard Lyot, is a type of optical filter that uses birefringence to produce a narrow passband of transmitted wavelengths. ...

Lyot stop A Lyot stop is an optic stop invented by Bernard Lyot that reduces the amount of flare caused by diffraction of other stops and baffles in optical systems. ...

Awards and honors

Awards

• Gold Medal of the Royal Astronomical Society in 1939.
• Bruce Medal in 1947.
• Henry Draper Medal in 1951.

Named for him The Gold Medal is the highest award of the Royal Astronomical Society. ... 1939 (MCMXXXIX) was a common year starting on Sunday (link will take you to calendar). ... The Catherine Wolfe Bruce gold medal is awarded every year by the Astronomical Society of the Pacific for outstanding lifetime contributions to astronomy. ... 1947 (MCMXLVII) was a common year starting on Wednesday (link will take you to calendar). ... The Henry Draper Medal was established by the widow of Henry Draper, and is awarded by the US National Academy of Sciences for contributions to astrophysics. ... 1951 (MCMLI) was a common year starting on Monday; see its calendar. ...

• Lyot crater on the Moon.
• Lyot crater on Mars.
• Minor planet 2452 Lyot.