Determination du Bord Lunaire à l'Aide du Microdensitometre de l'Observatoire de Nice (Papers presented at the IAU-COSPAR Julius Schmidt Symposium on 100 Years of Lunar Mapping, held at Lagonissi, Greece, 25-27 May, 1978.)

The reductions of occultations show that it is necessary to densify the Atlas of Weimer which lacks profiles corresponding to a number of libration of the Moon. A method to measure automatically the lunar limb was presented. The profiles that were obtained are in very good agreement with Weimer's. This method will allow us to densify this Atlas, using already existing or new plates.