Strasbourg astronomical Data Centre (DS)

Françoise GENOVA

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Founded in 1972 Located in Strasbourg (France) The team integrates astronomers, s/w engineers and

data librarians specialized in astronomical data Curates and distributes data from publications,

astronomical catalogues, reference images Three main services

SIMBAD, nomenclature and bibliography of astronomical objects (currently ~7 500 000)

VizieR, catalogues, observations logs tables and other data (images, spectra, time series, …) from publications

Aladin, interactive sky atlas. VO portal for image data and database of reference images.

The Centre de Données astronomiques de Strasbourg (CDS)

3The VizieR service

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Agreement with the then European journal Astronomy & Astrophysics in 1993: publication of tables at CDS (ftp service, then database allowing to query by criteria), selection by a science editor

Also data attached to publications from the other journals

A common metadata description: files, columns Fully integrated in the astronomical virtual

observatory (seamless access among observatory archives and other resources)

More and more data which are not tables (15% of 12 000)

Vizier content

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Françoise Genova, Copernicus Workshop, 14 March 2014

Data validated by a publication Fully discoverable

and usableble

“Photometry viewer”:Spectral points extracted from the collection

6Metadata & Virtual Observatory = data discovery & retrieval