The son of a wealthy Belgian textile industrialist, Robert Jonckheere developed early in life an enthusiasm for astronomy. At age 12, he began to travel in England to learn the language and the textile industry. He attended secondary school at the lycée of Tourcoing and attended college at Notre Dame des Victoires de Roubaix. With his family fortune, he built a private observatory on the roof of the family home in 1905 and became a member of l'société astronomique de France. In 1907, he found a site for a new observatory on a hill 20 meters above the surrounding land, which is now in the city of Hem near Lille. Construction started in December 1907 and ended with the installation of the telescope under the dome in 1909.[2]
Observatory at Hemedit
Observatory at Hem around 1909
Jonckheere's observatory was not totally devoted to astronomy. The building complex had several offices, a residential house, a library, and a weather station.[3]
Exile and returnedit
During World War I, Robert Jonckheere with his wife and children took refuge in England. During this period, the Royal Observatory, Greenwich allowed him to continue his study of double stars and published a catalogue presenting his results. For this catalogue, l'Académie des Sciences awarded him the Prix Lalande for 1917.[4] In order to support his family, Jonckheere worked in the optical department of the Royal Arsenal in Woolwich. After the end of the war, he returned to France to find the family business in ruins. In 1920, he took over the business from his father but the 1920s were bad times for the business and the observatory. In 1929, Jonckhèere sold the telescope and equipment to the University of Lille for use by the Observatory of Lille.
Professional careeredit
In spite of his achievements, Jonckhèere was unable to obtain employment as a researcher at the Observatory of Lille. In 1929, having sold land and building of his old installation at Hem, he left for Marseille.
At Marseille, Robert Jonckhèere was allowed to do research by the staff at the Observatory of Marseille but he had to do various odd jobs for a living. It was not until 1942 that he passed the entrance examination for the CNRS, enabling him to have the title Maître de Recherche and employment as a professional astronomer at the Observatory of Marseille. He continued his discoveries of double stars by using the telescope of Léon Foucault with its 80 centimeter mirror. Jonckhèere received the Prix Becquerel of l'Académie des Sciences in 1943.
He became chief editor of the Journal des Observateurs, a journal which published French astronomical research. He retired in 1962.
Selected publicationsedit
Jonckheere R. (1911) Stars, double and multiple, Cent nouvelles étoiles doubles. Monthly Notices of the Royal Astronomical Society, 71, 750 (abstract @ The Smithsonian/NASA Astrophysics Data System)
Jonckheere R (1911) Stars, Double and multiple, Mesures d'étoiles doubles à l'Observatoire de Lille. Monthly Notices of the Royal Astronomical Society, 72, 156 (with The SAO/NASA Astrophysics Data System)
Jonckheere R. (1912) Stars, Double and multiple, Nouvelles étoiles doubles. Monthly Notices of the Royal Astronomical Society, 72, 188 (SAO/NASA Astrophysics Data System ou ADS)
Jonckheere R (1944) Sur les Catalogues d'Etoiles doubles et en particulier sur celui de RG Aitken. Journal des Observateurs, 27, 73 (with SAO/NASA Astrophysics Data System (ADS))
Sourcesedit
Thorel JC (1999) Robert Jonckheere, un Roubaisien astronome à Hem, l'Observatoire de Hem puis de Lille ou Une passion pour les étoiles doubles
Thorel JC (2005) Robert jonckheere and double stars (Robert jonckheere et les étoiles doubles. qu'en est-il des mesures?), Observations et Travaux, 61, pages 26–33
Thorel JC (2009). Le ciel d'une vie: Robert Jonckheere. Éditions Le Temps Présent. ISBN978-2351850398.
Referencesedit
^Fehrenbach, Charles (1975). "Robert Jonckheere (1888–1974)". L'Astronomie. 89: 35–37. Bibcode:1975LAstr..89...35F.
^Thorel, Jean-Claude (2009). Le ciel d'une vie: Robert Jonckheere. Éditions Le Temps Présent. ISBN978-2351850398.
robert, jonckhèere, robert, jonckheere, july, 1888, roubaix, june, 1974, marseille, french, astronomer, known, discovery, more, than, 3350, double, stars, jonckheere, psychologist, statistician, university, college, london, contents, biography, youth, observat. Robert Jonckheere 25 July 1888 Roubaix 27 June 1974 Marseille was a French astronomer He is known for his discovery of more than 3350 double stars 1 A R Jonckheere psychologist and statistician at University College London was his son Contents 1 Biography 1 1 Youth 1 2 Observatory at Hem 1 3 Exile and return 1 4 Professional career 2 Selected publications 3 Sources 4 References 5 External linksBiography editYouth edit nbsp Refracting telescope of the observatory at HemThe son of a wealthy Belgian textile industrialist Robert Jonckheere developed early in life an enthusiasm for astronomy At age 12 he began to travel in England to learn the language and the textile industry He attended secondary school at the lycee of Tourcoing and attended college at Notre Dame des Victoires de Roubaix With his family fortune he built a private observatory on the roof of the family home in 1905 and became a member of l societe astronomique de France In 1907 he found a site for a new observatory on a hill 20 meters above the surrounding land which is now in the city of Hem near Lille Construction started in December 1907 and ended with the installation of the telescope under the dome in 1909 2 Observatory at Hem edit nbsp Observatory at Hem around 1909Jonckheere s observatory was not totally devoted to astronomy The building complex had several offices a residential house a library and a weather station 3 Exile and return edit During World War I Robert Jonckheere with his wife and children took refuge in England During this period the Royal Observatory Greenwich allowed him to continue his study of double stars and published a catalogue presenting his results For this catalogue l Academie des Sciences awarded him the Prix Lalande for 1917 4 In order to support his family Jonckheere worked in the optical department of the Royal Arsenal in Woolwich After the end of the war he returned to France to find the family business in ruins In 1920 he took over the business from his father but the 1920s were bad times for the business and the observatory In 1929 Jonckheere sold the telescope and equipment to the University of Lille for use by the Observatory of Lille Professional career edit In spite of his achievements Jonckheere was unable to obtain employment as a researcher at the Observatory of Lille In 1929 having sold land and building of his old installation at Hem he left for Marseille At Marseille Robert Jonckheere was allowed to do research by the staff at the Observatory of Marseille but he had to do various odd jobs for a living It was not until 1942 that he passed the entrance examination for the CNRS enabling him to have the title Maitre de Recherche and employment as a professional astronomer at the Observatory of Marseille He continued his discoveries of double stars by using the telescope of Leon Foucault with its 80 centimeter mirror Jonckheere received the Prix Becquerel of l Academie des Sciences in 1943 He became chief editor of the Journal des Observateurs a journal which published French astronomical research He retired in 1962 Selected publications editJonckheere R 1911 Stars double and multiple Cent nouvelles etoiles doubles Monthly Notices of the Royal Astronomical Society 71 750 abstract The Smithsonian NASA Astrophysics Data System Jonckheere R 1911 Stars Double and multiple Mesures d etoiles doubles a l Observatoire de Lille Monthly Notices of the Royal Astronomical Society 72 156 with The SAO NASA Astrophysics Data System Jonckheere R 1912 Stars Double and multiple Nouvelles etoiles doubles Monthly Notices of the Royal Astronomical Society 72 188 SAO NASA Astrophysics Data System ou ADS Jonckheere R 1944 Sur les Catalogues d Etoiles doubles et en particulier sur celui de RG Aitken Journal des Observateurs 27 73 with SAO NASA Astrophysics Data System ADS Sources editThorel JC 1999 Robert Jonckheere un Roubaisien astronome a Hem l Observatoire de Hem puis de Lille ou Une passion pour les etoiles doubles Thorel JC 2005 Robert jonckheere and double stars Robert jonckheere et les etoiles doubles qu en est il des mesures Observations et Travaux 61 pages 26 33 Thorel JC 2009 Le ciel d une vie Robert Jonckheere Editions Le Temps Present ISBN 978 2351850398 References edit Fehrenbach Charles 1975 Robert Jonckheere 1888 1974 L Astronomie 89 35 37 Bibcode 1975LAstr 89 35F Thorel Jean Claude 2009 Le ciel d une vie Robert Jonckheere Editions Le Temps Present ISBN 978 2351850398 L Observatoire de Hem Association Jonckheere Prizes in Astronomy Popular Astronomy 26 352 1918 Bibcode 1918PA 26 352 External links editAssociation Jonckheere les amis de l observatoire de Lille R Jonckheere Astrophysics Data System Retrieved from https en wikipedia org w index php title Robert Jonckheere amp oldid 1029893457, wikipedia, wiki, book, books, library,
