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Centre de Données astronomiques de Strasbourg
Strasbourg astronomical Data Centre (CDS – Centre de Données astronomiques de Strasbourg) is a scientific Research Infrastructure dedicated to collection and worldwide distribution of astronomical reference data. The CDS is part of the Observatoire astronomique de Strasbourg. The CDS develops services that are widely used by the international astronomical community: SIMBAD, the reference database for the nomenclature and bibliography of astronomical objects (outside the solar system), VizieR, the reference service for astronomical catalogues and tables published in academic journals, the Aladin service (image database, applications and Virtual Observatory portal), the CDS X-Match large astronomical catalogue cross-correlation service, and the CDS Portal. Access to the services is via the interactive CDS web site and via multiple programmatic interfaces, which are all heavily used by the community with ~2 million queries per day. The CDS is also a major actor in the development and provision of services to the astronomical Virtual Observatory framework.
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