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French National Node Report Isabelle Daumont (Obs. Paris / Ministry of National Education )

French National Node Report Isabelle Daumont (Obs. Paris / Ministry of National Education ). www.ac-nice.fr. The results (in Mkm) 153 Calern 122 Chinon 191 Dijon_1 132 Dijon_2 184 Draguignan_1 152 Draguignan_2 168 Ferney-V. 161 Spitzberg 118 Lyon 165 Marseille 125 St-Genis L.

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French National Node Report Isabelle Daumont (Obs. Paris / Ministry of National Education )

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  1. French National Node ReportIsabelle Daumont (Obs. Paris / Ministry of National Education) www.ac-nice.fr The results (in Mkm) 153 Calern 122 Chinon 191 Dijon_1 132 Dijon_2 184 Draguignan_1 152 Draguignan_2 168 Ferney-V. 161 Spitzberg 118 Lyon 165 Marseille 125 St-Genis L. 135 Tarentaise 244 Versailles_1 * 159 Versailles_2 ______________ mean value 151  7 Mkm * rejected at 2 level The CLEA protocol consisted in making photos of the Sun, every 30 minutes at rounded UT (8h00, 8h30, 9h00 etc...) from different places. By superimposing the photos, the distance to the Sun can be calculated in a straightforward way. The expedition to the Spitzberg (from Chelles high school St Louis de la Réunion high school preparing the transit Superimposed photos at 8h00 UT from Dijon and La Réunion Superimposed photos from the two groups, allowing the calculation of the astronomical unit by a parallax method Map of the repartition of educational establishments with LUNAP subventions • Some papers published in our bulletin : Les Cahiers Clairaut (CC 105-107) • Why Venus passes in front of the Sun • Why this phenomenon is so rare • How can we predict these transits with a pocket calculator • Some pieces of advise to observe the transit of Venus in 2004 • The CLEA protocol to measure the distance to the Sun • How can we superimpose photographic frames when there is no Sun spot • The distance to the Sun from the CLEA measurements Pictures of the crowd during the transit at the obs. of Paris • already on line : data baseof the observation of contacts for 1600 different locations allowing the calculation of a.u. • in process: realization of a data base of the images of Venus in front of the Sun

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