Les vies successives du cercle méridien portatif de Rigaud n° 2
Abstrak
In the middle of the 19th century, the portable meridian telescope emerges to measure the position on earth or to determine the time. Doesn’t the mobility of the instrument permanently challenge the state of operational stability slowly obtained for the accuracy of the measurement? We examine this question through the course of the meridian circle n° 2 of Rigaud. Used in the service of the revision of the longitudes of the Carte de France by the astronomer Antoine Yvon Villarceau (1813-1883), it is destroyed during the events of the Commune. Restored because of its aura of precision, it was used in several astronomical expeditions at the end of the 19th century, some of which had an imperial vocation. Loaned to the Jesuit observatory of Madagascar, it became the fixed meridian instrument in the first quarter of the 20th century.
Topik & Kata Kunci
Penulis (1)
Frédéric Soulu
Akses Cepat
- Tahun Terbit
- 2023
- Sumber Database
- DOAJ
- DOI
- 10.4000/cahierscfv.4135
- Akses
- Open Access ✓