By Jean Kovalevsky

Les parallaxes trigonométriques, les dimensions et les mouvements propres des astres sont des paramètres fondamentaux pour l'astronomie. Ce livre décrit les méthodes de l'astrométrie moderne, en particulier les progrès remarquables relatifs aux earnings de précision, les concepts interférométriques et laser, ainsi que les tools d'astrométrie spatiale, notamment HIPPARCOS. Le livre start par une advent à l'astrométrie, aux principes d'optique body et à l'astronomie fondamentale. Les chapitres suivants sont consacrés à l'étude des principaux tools, classiques et modernes. Ce cours professé à l'Observatoire de Paris s'adresse aux étudiants en astronomie.

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55 No wonder, then, if Pseudo-Martyr reveals both Donne’s pity and resentment. 56 Carey’s few comments on the inf luence of the Jesuits and Ignatius’s Spiritual Exercises on Donne are best read in the context of his unf lattering view of Donne’s personality. 57 Concerning the Spiritual Exercises, he suggested that Donne did not find in the Exercises a way to freedom, but used them for his own purposes. Donne, who felt guilty for not being hungry for martyrdom, ‘to rouse his soul from its torpor, had recourse to the programme of Spiritual Exercises which had been devised by St Ignatius Loyola, and which were frequently prescribed to Catholics by their confessors.

16 For him discretion meant responding to the call of the Holy Spirit, living in the presence of God, consenting to the good and avoiding evil. It could not be learned. It was grace given. By experience we might learn at the most the ‘discretion of spirits’. 17 Unlike the above treatises, however, The Pilgrymage organized the accumulated wisdom of the Fathers in English according to the Thomistic system of grace and followed the typical Thomistic distinction between ‘grace of life’ and ‘graces 14 15 16 17 Richard of St Victor, Here Foloweth a Veray Devoute Treatyse (named Benyamyn) of the Mightes and Vertues of Mannes Soul, together with other treatises (London: H.

176, 328, 336). However, whether he was aware of it or not, Ignatius interpreted his own spiritual experience, and then wrote the Spiritual Exercises for the help of others, in the light of various facets of the Catholic tradition of discretion. Considered from the point of view of the exercitants, and in the light of the dynamics of the whole process, the Ignatian text appears as a call to exercise various levels of graced discretion, which leads to the reforming of the powers of the soul and the renewal of life.

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