La Medalla Janssen és una recompensa atorgada per l'l'Acadèmia de Ciències de França a la persona que hagi contribuït pels seus treballs o els seus descobriments al progrés de l'Astrofísica. Les Prix Thématiques en Sciences de l'Univers , sur le site de l'Académie des Sciences, accessed 23/01/2011
El premi va ser fundat el 1886, encara que la primera medalla no es concedí fins a un any més tard. La comissió formada per decidir sobre el primer receptor de la medalla seleccionà el físic alemany Gustav Kirchhoff pels seus treballs en Espectroscòpia. No obstant això, Kirchhoff de 63 anys va morir el 17 d'octubre de 1887, uns mesos abans que el premi li fos lliurat.En lloc de triar un nou receptor per a l'adjudicació, la Comissió va anunciar en la sessió de l'Acadèmia de 26 desembre 1887 que la medalla inaugural seria col·locada sobre la seva tomba, un "suprem honor en memòria d'aquest gran erudit de Heidelberg".Comptes rendus de l'Académie des sciences (1887), p. 1322-1323.
El premi estava destinat a ser biennal, però va ser concedit en 1888 i novament en 1889. Una declaració en els Resums de l'Acadèmia de les ciències de l'any 1989, va aclarir que el premi s'atorgaria anualment durant els primers set anys, i després cada dos anys a partir de 1894 en endavant. Comptes rendus de l'Académie des sciences (1889), pp.1095-1096
Aquest premi és diferent del Premi Jules Janssen (creat l'any 1897), un premi anual atorgat per la Societat Astronòmica de França (SAF). Tots dos premis s'anomenen així per l'astrònom francès Pierre Janssen (1824–1907)(més conegut com a Jules Janssen). Janssen va fundar el premi de l'Acadèmia, i va ser membre de la comissió inaugural.
Guanyadors 1887 - Gustav KirchhoffPrizes of the French Academy, Ralph E. Wilson, General Notes, Popular Astronomy, Vol. 21, 1913, pp.383-385. (a títol pòstum) 1888 - William Huggins,Prizes of the French Academy, Ralph E. Wilson, General Notes, Popular Astronomy, Vol. 21, 1913, pp.383-385.Huggins, Sir William (1824–1910), Barbara J. Becker, Oxford Dictionary of National Biography, Oxford University Press, 2004; online edn, Jan 2008, accessed 23 Jan 2011 1889 - Norman LockyerPrizes of the French Academy, Ralph E. Wilson, General Notes, Popular Astronomy, Vol. 21, 1913, pp.383-385. 1890 - Charles Augustus Young,Prizes of the French Academy, Ralph E. Wilson, General Notes, Popular Astronomy, Vol. 21, 1913, pp.383-385.Charles Augustus Young, John M. Poor, Popular Astronomy, vol. 16 (1908), pp.218-230. 1891 - Georges RayetPrizes of the French Academy, Ralph E. Wilson, General Notes, Popular Astronomy, Vol. 21, 1913, pp.383-385. 1892 - Pietro Tacchini,Prizes of the French Academy, Ralph E. Wilson, General Notes, Popular Astronomy, Vol. 21, 1913, pp.383-385.Pietro Tacchini, Hector MacPherson, Jr., Popular Astronomy, vol. 13 (1905), pp.306-308. 1893 - Samuel Pierpont LangleyAward of the JANSSEN Prize to Dr. LANGLEY, Publications of the Astronomical Society of the Pacific, Vol. 6 (1894), No. 34, p.66 1894 - George Ellery HalePrizes of the French Academy, Ralph E. Wilson, General Notes, Popular Astronomy, Vol. 21, 1913, pp.383-385. 1896 - Henri DeslandresPrizes of the French Academy, Ralph E. Wilson, General Notes, Popular Astronomy, Vol. 21, 1913, pp.383-385. 1898 - Aristarkh BelopolskyPrizes of the French Academy, Ralph E. Wilson, General Notes, Popular Astronomy, Vol. 21, 1913, pp.383-385. 1900 - Edward Emerson BarnardPrizes of the French Academy, Ralph E. Wilson, General Notes, Popular Astronomy, Vol. 21, 1913, pp.383-385. 1902 - Aymar de la Baume PluvinelPrizes of the French Academy, Ralph E. Wilson, General Notes, Popular Astronomy, Vol. 21, 1913, pp.383-385. 1904 - Aleksey Pavlovitch HanskyPrizes of the French Academy, Ralph E. Wilson, General Notes, Popular Astronomy, Vol. 21, 1913, pp.383-385. 1905 - Gaston MillochauPrizes of the French Academy, Ralph E. Wilson, General Notes, Popular Astronomy, Vol. 21, 1913, pp.383-385. (condecor.vermella)The 1905 statement in Comptes rendus relating to this award stated that the gold medal award would be made in 1906, but that an award of a silver medal would be made in 1905 to Gaston Millochau. 1906 - Annibale RiccòPrizes of the French Academy, Ralph E. Wilson, General Notes, Popular Astronomy, Vol. 21, 1913, pp.383-385. 1908 - Pierre PuiseuxPrizes of the French Academy, Ralph E. Wilson, General Notes, Popular Astronomy, Vol. 21, 1913, pp.383-385. 1910 - William Wallace CampbellPrizes of the French Academy, Ralph E. Wilson, General Notes, Popular Astronomy, Vol. 21, 1913, pp.383-385. 1912 - Alfred PerotPrizes of the French Academy, Ralph E. Wilson, General Notes, Popular Astronomy, Vol. 21, 1913, pp.383-385. 1914 - René Jarry-DeslogesJarry‐Desloges, René, Patrick Fuentes, The Biographical Encyclopedia of Astronomers, 2007, Part 10, 589-590, 1916 - Charles FabryGeneral Notes, Popular Astronomy, Vol. 25, 1917, p.214-216. 1918 - Stanislas ChevalierThe citations for all these recipients are located in the corresponding issue of Comptes rendus de l'Académie des sciences for the year of the award. 1920 - William CoblentzGeneral Notes, Publications of the Astronomical Society of the Pacific, Vol. 33, No. 192, pp.120-122 (1921). 1922 - Carl StørmerNotes, Bulletin of the American Mathematical Society, December 1922 issue, pp.476-478 1924 - George Willis RitcheyGeneral Notes, Publications of the Astronomical Society of the Pacific, Vol. 36, No. 214, pp.360-363 (1924). 1926 - Francisco Miranda da Costa LoboThe citations for all these recipients are located in the corresponding issue of Comptes rendus de l'Académie des sciences for the year of the award. 1928 - William Hammond WrightWilliam Hammond Wright, 1871-1959, Paul W. Merril, Publications of the Astronomical Society of the Pacific, Vol. 71 (1959), No. 421, p.305 1930 - Bernard Ferdinand LyotThe citations for all these recipients are located in the corresponding issue of Comptes rendus de l'Académie des sciences for the year of the award. 1932 - Alexandre DauvillierThe citations for all these recipients are located in the corresponding issue of Comptes rendus de l'Académie des sciences for the year of the award. 1934 - Walter Sydney AdamsWalter S. Adams, 1876-1956, F. J. M. Stratton, The Observatory, Vol. 76, p. 139-140 (1956) 1936 - Henry Norris RussellRUSSELL, Henry Norris, Who Was Who, A & C Black, 1920–2008; online edn, Oxford University Press, Dec 2007, accessed 23 Jan 2011 1938 - Bertil LindbladThe citations for all these recipients are located in the corresponding issue of Comptes rendus de l'Académie des sciences for the year of the award. 1940 - Harlow ShapleyThe citations for all these recipients are located in the corresponding issue of Comptes rendus de l'Académie des sciences for the year of the award. 1943 - Lucien Henri de AzambujaThe citations for all these recipients are located in the corresponding issue of Comptes rendus de l'Académie des sciences for the year of the award. 1944 - Jean RöschThe citations for all these recipients are located in the corresponding issue of Comptes rendus de l'Académie des sciences for the year of the award. 1946 - Jan Hendrik OortThe citations for all these recipients are located in the corresponding issue of Comptes rendus de l'Académie des sciences for the year of the award. 1949 - Daniel ChalongeThe citations for all these recipients are located in the corresponding issue of Comptes rendus de l'Académie des sciences for the year of the award. 1952 - André CouderThe citations for all these recipients are located in the corresponding issue of Comptes rendus de l'Académie des sciences for the year of the award. 1955 - Otto StruveGeneral Notes, Publications of the Astronomical Society of the Pacific, Vol. 68, No. 400, pp.84-85 (1956) 1958 - André LallemandThe citations for all these recipients are located in the corresponding issue of Comptes rendus de l'Académie des sciences for the year of the award. 1961 - Pol Swings Pol Swings - Curriculum Vitae , Fondation Francqui-Stichting website, accessed 24/01/2011 1964 - Jean-François Denisse Jean-François Denisse , sur le site de l'Académie des sciences, accessed 23/01/2011 1967 - Bengt StrömgrenStrömgren, Bengt Georg Daniel, Complete Dictionary of Scientific Biography (2008), retrieved 26/01/2011 from Encyclopedia.com 1970 - Gérard Wlérick Gérard Wlérick , French Academy of Sciences website, accessed 28/01/2011 1973 - Lucienne DevanComptes rendus hebdomadaires des séances de l'Académie des sciences: Sciences mathématiques, Volume 277, page 128 (1973) (condecor.vermella)The Comptes rendus citation refers to the award as a "médaille en vermeil". 1976 - Paul LedouxPaul Ledoux (1914-1988), A. Noels, The Messenger, vol. 54, p.10 (1988) 1979 - Jean DelhayeJ. Delhaye received the Prix Jules-César Janssen, C. R. Acad. 1982 - Georges MichaudObservatory Reports: Université de Montréal, Bulletin of the American Astronomical Society, Vol. 16, p.246 (1984) 1994 - Serge KoutchmySerge Koutchmy received la médaille Janssen, C. R. Acad. 1999 - Jean-Marie Mariotti 2003 - Gilbert Vedrenne 2007 - Bernard Fort Lauréats des Prix de l'Académie des Sciences en 2007 , Site de l'Académie des sciences, accessed 23/01/2011 2011 - Francois Mignard Francois Mignard , site de l'Académie des sciences, accessed 03/05/2012
Referències
Vegeu també Elliott Cresson Medal Premi Rumford National Medal of Science Medalla Lorentz Medalla Bruce Medalla Eddington
Enllaços externs http://www.academie-sciences.fr/prix/ptsu.htm () Article i fotografia sobre la posada de la condecora 2007 a Bernard Fort (Institut de astrophysique de París) Categoria:Premis de ciència Categoria:Astrofísica