Jean-Claude Pecker is confirmed dead at the age of 96.
Jean-Claude was best known as a French astronomer.
RIP Jean-Claude Pecker @TheTweetOfGod #TragicDeaths 💔💐 #Jean-ClaudePecker add some flowers to their gravestone at
It's a sad day, Jean-Claude Pecker dies - #JeanClaudePecker #Jean-Claude #Pecker #rip
Jean-Claude Pecker... what else is there to say? As a kid, he taught me it was okay to be weird
Professor

Jean-Claude Pecker
JeanClaudePecker1970.jpg
Pecker (1970)
Born (1923-05-10) 10 May 1923 (age 96)
NationalityFrench
EducationLycée Michel de Montaigne de Bordeaux
Alma materUniversity of Bordeaux, University of Grenoble
Awards
Scientific career
FieldsTheoretical astrophysics
InstitutionsProfessor emeritus at the College de France, Paris
Jean-Claude Pecker (born 10 May 1923) is a French astronomer, astrophysicist and author, member of the AcadĂ©mie des Sciences and former director of the Nice Observatory. He served as the secretary-general of the International Astronomical Union from 1964 to 1967. Pecker was the President of the SociĂ©tĂ© astronomique de France (SAF), the French amateur astronomical society, from 1973–1976. He was awarded the Prix Jules Janssen by the French Astronomical Society in 1967. A minor planet (1629 Pecker) is named after him. Pecker is a vocal opponent of astrology and pseudo-science and was the president of the Association française pour l'information scientifique (AFIS), a skeptical organisation which promotes scientific enquiry in the face of quackery and obscurantism.
Contents
1 Early life
2 Professional career
2.1 Positions held
2.2 Publications
3 Humanism
4 Personal life
5 Awards
6 External links
7 References
Early life
Jean-Claude Pecker was born 10 May 1923, in Reims, to Victor-Noel Pecker and Nelly Catherine nĂ©e Hermann (a teacher of Philosophy and Literature), in the department of Marne, France. The grandson of Joseph Hermann, rabbi of Valenciennes and later Reims, Pecker was born in his maternal grandparents' house, moving later to Bordeaux. In the summer of 1941 they moved to the Hermann house in Paris because of anti-jewish restrictions placed on his parents during the Vichy regime. In May 1944 both his parents were transported to Auschwitz where they died, while his grandmother, absent during the raid, was hidden by neighbour Ida Barrett who was later designated by the state of Israel as one of the Righteous Among the Nations for her actions to conceal the old lady until the liberation of Paris. Pecker was interested in astronomy from a young age. He studied at the LycĂ©e Michel de Montaigne de Bordeaux but was forced to go into hiding during the second world war. After the Liberation of France he attended the École Normale SupĂ©rieure in Paris. In October 1946 he joined the Institut d'astrophysique de Paris and studied for the agrĂ©gation of physics and chemistry, where he studied under, and had his doctoral thesis judged by Nobel Prize winning physicist Alfred Kastler. He earned his doctorate in May 1950. At the Institut d’Astrophysique he got to know and shared an office with Évry Schatzman with whom he collaborated for many years.
Professional career
From 1952 to 1955 Pecker was associate professor of astronomy and astrophysics at the University of Clermont-Ferrand. From early in his career he held many international appointments including fellow of the High Altitude Observatory in Colorado, USA. In 1955 he became astronomer for the Paris Observatory followed by director of the Nice Observatory in 1961. In 1963 Pecker became professor of theoretical astrophysics at the CollĂšge de France in Paris, a position he held until 1988 when he became honorary professor. He was also director of the French National Centre for Scientific Research (CNRS) Institute of Astrophysics from 1972-1978. His main fields of work within astrophysics have been solar and stellar atmospheres and sun-earth interactions. He is also known for questioning the standard big bang theory, positing "alternative but partial solutions" (a quasi-static model) and was signatory, with 33 other scientists, to an open letter to the scientific community expressing concern over the dominance of the big bang and expansion of the Universe theories. They complained that the tired light theory in particular was generally discounted or ignored by most cosmologists at the time of writing.
Positions held
1952-1955 Professor at the Faculty of Science, University of Clermont-Ferrand
1955-1962 Astronomer of the Paris Observatory
1962-1969 Director of the Nice Observatory
1963-1988 Professor of theoretical astrophysics at the CollĂšge de France and honorary professor thereafter
1964-1967 General secretary of the Société astronomique de France and President thereafter until 1976
1972-1979 Director of the French National Centre for Scientific Research (CNRS) Institute of Astrophysics
1978 President of the French association for the advancement of science
1983-1985 President of the Comité d'Orientation du Musée de la Villette
1986-1988 President of the Comité National de culture scientifique et technique
1988 Vice-chair of the Scientific committee of the Musées de France
1989-1992 Vice-President of the Academia Europaea
1990-1996 Vice-President of the French UNESCO committee and thereafter permanent representative to UNESCO of the International Humanist and Ethical Union (IHEU)
1999-2001 President of the Association française pour l'information scientifique
In the 1950s Pecker spent a year as associate fellow of the High Altitude Observatory at Boulder, Colorado.
Pecker is also associate member of the Royal Society of Science (Liege), associate of the Royal Astronomical Society, member of the National Academy of Bordeaux, the Royal Academies for Science and the Arts of Belgium, the European Academy of Sciences and Arts and honorary associate of Rationalist International, member of the Academia Europaea and sits on the international advisory board of the Institute for Science and Human Values. Pecker is also a member of the International Astronomical Union (IAU).
Publications
Pecker has written and co-written many books and over 700 academic papers on subjects such as cosmology, astronomy, astrophysics, human rights, pseudo-science, poetry and art. He has also presented paintings at exhibitions in France. He also writes popular science articles and books for the general public, some of which have been translated into other languages. His books include:
The Sky (1959)
Astrophysique GĂ©nĂ©rale (with Évry Schatzman, 1959)
The Orion Book of the Sky (Translated by William D. O'Gorman) (1960)
Contribution to the spectral type theory: iv Formation of lines in stellar spectra (1963)
Experimental Astronomy (translated by Robert Kandel) (1970)
Space Observatories (Astrophysics and Space Science Library) (1970)
Papa, dis-moi, qu'est-ce que c'est que l'Astronomie (1971)
Stellar Paths: Photographic Astrometry with Long-Focus Instruments (1981)
Clefs pour l'Astronomie (1981)
Understanding the Universe: the impact of space astronomy (ed. West) (1983)
Sous l'Étoile Soleil (1984)
Astronomie Flammartion (1986)
Building a world community: Humanism in the 21st century (ed. Paul Kurtz) (1989)
The Future of the Sun (translated Maurice Robine) (1990)
Pour comprendre l'Univers (w.Delsemme & Reeves 1988)
L'avenir du Soleil (1990)
Le Promeneur du Soleil (1992)
Le Soleil est une Ă©toile (1992)
The Mars Effect (with Claude Benski) (1996)
Understanding the Heavens: 30 centuries of astronomical ideas from ancient thinking to modern cosmology (English edition 2001)
La photographie astronomique (2004)
Current issues in cosmology (Cambridge University Press, 2006)
Humanism
Pecker was vice-president of the French UNESCO committee in 1990, afterwards becoming a French permanent representative to UNESCO on behalf of the International Humanist and Ethical Union (IHEU), an organisation which reflected his humanist approach to his life's work. Pecker has spoken out against the governments punitive immigration laws, publicly supporting the National Coordination of Sans Papiers (CNSP) organisation. He was awarded the International Humanist Award for services to Humanism from the International Humanist and Ethical Union (IHEU) in 2005 and acts as a permanent representative to UNESCO on behalf of the IHEU. Pecker is also a laureate of the International Academy of Humanism.
Personal life
Awards
Commander of the LĂ©gion d'Honneur
Grand Cross of the National Order of Merit (France)
Commander of the Ordre des Palmes Académiques
1966 Manley-Bendall Prize from the Academy of Bordeaux
1967 Jules-Janssen Prize, the highest award for Astronomy from the French Astronomical Society (SAF)
1967 Janssen Medal for significant advances in the field of astrophysics
1969 Three Physicists Prize
1972 Medal from the University of Nice
1973 Prix Jean Perrin, for popularising science to the general public
1977 Member of the French Academy of Sciences
1981 Medaille de l’Adion of the Nice Observatory
1983 Rationalist Union prize
1984 Personalité de l'Année
1996 Stroobant Prize from the Royal Academies for Science and the Arts of Belgium
1996 Lodén Prize from the Royal Society of Sciences in Uppsala
2005 International Humanist Award, for services to Humanism from the International Humanist and Ethical Union (IHEU)
Pecker also has a minor planet (1629) named in his honour, discovered by L. Boyer.
External links
Pecker biography at the CollĂšge de France
BibliothĂšque nationale de France (French national library) author reference
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