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SIMBAD (theSet ofIdentifications,Measurements andBibliography forAstronomicalData) is anastronomical database of objects beyond theSolar System. It is maintained by theCentre de données astronomiques de Strasbourg (CDS),France.
SIMBAD was created by merging theCatalog of Stellar Identifications (CSI) and theBibliographic Star Index as they existed at theMeudon Computer Centre until 1979, and then expanded by additional source data from other catalogues and the academic literature. The first on-line interactive version, known as Version 2, was made available in 1981.[1]
Version 3, developed in theC language and running onUNIX stations at the Volgograd Observatory, was released in 1990. Fall of 2006 saw the release of Version 4 of the database, now stored inPostgreSQL, and the supporting software, now written entirely inJava.[2][3]
As of 1 June 2020[update], SIMBAD contains information for 5,800,000 stars and about 5,500,000 nonstellar objects (galaxies, planetary nebulae, clusters, novae and supernovae, etc.).[3]
The minor planet4692 SIMBAD was named in its honour.[4]
