Who we are ?

The OCA library gathers three libraries in the field of Astronomy and Planet Science :

Nice Mont-Gros library 
  • specialized in Astronomy and related disciplines,
  • founded in 1881 by Raphaël Bischoffsheim,
  • with a rich 19th-century collection of books and journals.

Nice Valrose library

  • specialized in Astrophysics
  • affiliated with the Lagrange laboratory
  • partener with OCA since 2008

Sophia-Antipolis Library

  • specialized  in Geophysics and geodesy
  • affiliated with the Geoazur laboratory
  • founded in  2012, it gathers the collections of 3 ancient libraries (Villefranche-sur Mer library  ; ancient Sophia-Antipolis library  ; Grasse library)



  • The three OCA libraries support the research and teaching activities of the Observatory.
  • In cooperation with others library networks, each OCA library provides access to materials and information, together with assistance and training in location and use of these materials.

Key figures

  • Public reception : 3 reading rooms (221 m2) - 39 seats (28 dedicated to work group - 11 individual offices) .
  • Collection (march 2018)  : 23205 titles -  27366 volumes (19355 books ; 3579 thesis ; 2420 print periodicals ; 565 maps ...).
  • Communication : 1 unique portail to access resources and services  - 1 newsletter  "Biblonews"  - 1 email address for all the requests (This email address is being protected from spambots. You need JavaScript enabled to view it.)


Since many years, the OCA library  has been developing partnerships to facilitate access to electronic resources and the documentary holdings of its members.

  • All the OCA laboratories have the right to access the online resources of BibCNRS portal via their specialized institutes, INSU or INSIS.
  • The OCA and the University of Nice-Sophia-Antipolis (UNS) collaborate to facilitate online access to journal packages.
  • Since 2016, the OCA library register its collections in the UNS catalog and the SUDOC national catalog.