Jump to navigation
The Observatoire de Paris is home to exceptional contemporary and historic collections in the fields of astronomy, astrophysics and the history of the disciplines. The Observatoire's Historic Archives, located primarily in Paris, contain documents and manuscripts of invaluable French and international significance.
At the heart of the Archive collection are the astronomical archives assembled from across Europe by Joseph-Nicolas Delisle, correspondence of the Polish astronomer Hevelius (1611-1687), observation logs and papers of the Cassini family of astronomers and manuscripts relative to the history of the metric system.
Holdings represent over 300 metric meters of printed documents as well as other materials . The main archival collections include:
Free annual registration required. The library is open to Observatoire de Paris staff and students, as well as to outside lectors upon proof of current research.
Outside lectors will be granted a three-day pass, without proof of research, on presentation of a valid official photo ID.
Library loans are reserved for permanent and temporary Observatoire de Paris staff and students.
Lending terms: 1 month, renewable 5 times. 20 documents maximum.