Ferdinand Jules Quénisset (1872–1951) was a French astronomer who specialized in astrophotography.

Early life and career Quénisset was born on 8 August 1872 in Paris, the son of Gatien Jules Quénisset, an assistant director of the Administration des Monnaies et Médailles in Paris, and Juliette Antonia Mallard, a dressmaker. Archives nationales, Base Leonore, Cote 19800035/1234/42381 L'Astronomie 1951, vol. 65, p. 357.

He became a member of the Société astronomique de France in 1890, after becoming interested in astronomy by reading Camille Flammarion's books. Bulletin de la Société Astronomique de France 1896, p. 435. From 1891 to 1894, Quénisset served as member of the society's council as assistant librarian in the society's headquarters, which at the time was located at 28 rue Serpente in the 6th arrondissement of Paris. L'Astronomie 1894, pp. 10-12.

Quénisset worked as an observer at Flammarion's observatory in Juvisy-sur-Orge from 1891 to 1893, during which time he discovered a comet. He was forced to abandon astronomy for a dozen years while he performed his military service, but then returned to Juvisy in 1906 to resume his post at the observatory (he succeeded Eugène Antoniadi, who had left Juvisy in 1902). L'Astronomie 1951, vol. 65, p. 356.

Quénisset worked at the Juvisy observatory for the remainder of his career until 1947, when his health obliged him to quit.

He was a member of the International Union for Cooperation in Solar Research in 1913.Transactions of the International Union for Cooperation in Solar Research, vol. 4 (Manchester: University of Manchester Press, 1914), p. 3.

He was a member of the International Astronomical Union and participated in Commissions 15 (Physical Study of Comets & Minor Planets) and 16 (Physical Study of Planets & Satellites). L'Astronomie 1951, vol. 65, p. 360.

Quénisset died on 8 April 1951 and is buried in the new cemetery of Juvisy.

Scientific achievements

Co-discovered comet C/1893 N1 (Rordame–Quenisset) on 9 January 1893.Comptes-Rendus des séances de l’Académie des Sciences de Paris, 10 Juillet 1893. First in France to photograph zodiacal light in 1902. L'Astronomie 1951, vol. 65, p. 359. Discovered comet C/1911 S2 (Quenisset) on 23 September 1911.Comptes-Rendus des séances de l’Académie des Sciences de Paris, Septembre 1911. First to photograph details of the atmosphere of Venus in 1911.Comptes-Rendus des séances de l’Académie des Sciences de Paris, Decembre 1911 Took nearly 6,000 astronomical photographs and more than 1,500 meteorological photographs [as of 1932], many of which were published in the Bulletin of the Société astronomique de France, the Comptes Rendus des séances de l’Académie des sciences, and other scientific publications. His most noteworthy meteorological photographs were published as individual plates in the book Les Nuages et les Systèmes nuageux.Durr, L.; Wehrle, Ph.; Delcambre. Cours de météorologie à l'usage des candidats au brevet de météorologiste militaire. 2ème Partie, Les Nuages et les Systèmes nuageux: Planches. (Paris : Office national météorologique de France, 1926) Quénisset also made numerous drawings of Venus, Mars, Jupiter and the Moon. First to successfully record Mercury's albedo features photographically.Gerald North. Observing the Solar System: The Modern Astronomer's Guide (New York: Cambridge University Press, 2012), p. 186. First in France to photograph Pluto, in Spring and Autumn 1930.Comptes-Rendus des séances de l’Académie des Sciences de Paris, 20 Octobre 1930 Delivered numerous conferences on astronomy in France (Paris, Versailles, Le Havre, Saint-Quentin, Tours, Lille, Crépy-en-Valois) and in other countries (Belgium, Switzerland).

Awards and honors 1899 - Prix des Dames from the Société Astronomique de France. "Prix et Médailles décernés par la Société," L'Astronomie, vol. 81, page 398. 1901 - Officier d'académie by decree of the Ministre de l'instruction publique et des beaux-arts of 12 April 1901.Journal officiel de la République française, 23 avril 1901, p. 2673. 1911 - Donohoe Comet-Medal (Seventy-Second) from the Astronomical Society of the Pacific, for his discovery of the comet C/1911 S2 (Quenisset) on 23 September 1911.Award of the Donohoe Comet-Medal, Publications of the Astronomical Society of the Pacific, Vol. 23, No. 139, p. 262. 1923 - Honorary member of the Société astronomique Flammarion de Genève, for his contribution to the establishment of that association.‘’Bulletin trimestriel’’ of the Société astronomique Flammarion de Genève 1928, p. xxxiii. 1926 - Médaille Commémorative from the Société Astronomique de France."Prix et Médailles décernés par la Société," L'Astronomie 1979, vol. 93, p. 545. 1932 - Chevalier of the Légion d'honneur on 29 December 1932. Ferdinand Quénisset, L'Astronomie, vol. 65, page 356-360, September 1951. 1933 - First Prize in the Concours photographie de nuages (Cloud Photography Competition) of the Office National Météorologique.Why the Weather. Cloud Photography Competition. The Gazette and Daily (York, Pennsylvania), 3 February 1934, p. 7. The International Cloud Year, The Photographic Journal (The Royal Photographic Society), March 1934, 137. 1934 - Valz Prize from the French Academy of Sciences for his observations of comets. 1938 - Prix Gabrielle et Camille Flammarion from the Société Astronomique de France. 1945 - Prix Dorothéa Klumpke-Isaac Roberts from the Société Astronomique de France. Prix et Médailles décernés par la Société, L'Astronomie, vol. 80, page 382, 1966. 1973 - Quenisset impact crater on Mars named in his honor by the International Astronomical Union (IAU). 2022 - Asteroid 423645 Quénisset named in his honor by the IAU.

Publications

Author Les phototypes sur papier au gélatinobromure (Paris: Gauthier-Villars, 1901). catalog entry at the Bibliothèque nationale de France Applications de la photographie à la physique et à la météorologie (Paris: Charles Mendel, 1901). Manuel pratique de photographie astronomique à l'usage des amateurs photographes (Paris: Charles Mendel, 1903). Instruction pour la photographie des nuages (Paris: Office National de Météorologie, 1923), . Annuaire astronomique et météorologique Camille Flammarion (Paris: Flammarion (impr. de Jouve), 1937–1951).catalog entry at the Bibliothèque nationale de France

Contributor Cours de météorologie à l'usage des candidats au brevet de météorologiste militaire. 2ème Partie, Les Nuages et les Systèmes nuageux: Planches (Paris : Office national météorologique de France, 1926). Atlas international des nuages et des types de ciels. I. Atlas général (Paris : Office National Météorologique de France, 1939).Bibliothèque nationale de France Gallica catalog entry

References

External links Astronomes de Juvisy