Links

• Catalog of Open Clusters (Dias et al. 2002)
  online collection of published data of open clusters which updates the catalog of Lynga (1987)



• WEBDA
  Database of open clusters in the Galaxy and the Magellanic Clouds, initiated by Jean-Claude Mermilliod (Observatoire de Geneve) and from 2005 onwards maintained by Ernst Paunzen (Institute of Astronomy, University of Vienna)



• SCYON
  A Newsletter devoted to Star Clusters, Young & Old. Edited by Holger Baumgardt, Ernst Paunzen, and Pavel Kroupa



• SIMBAD
  Astronomical Database at the Centre de Donnees astronomiques (CDS) de Strasbourg



• VIZIER
  online catalogue service at the CDS de Strasbourg