We have compiled a new edition of the catalogue of open clusters and candidates which updates the previous edition published in 2002 (Dias et al. 2002) and 2003 (Dias et al. 2003). The number of clusters (1689) presently known represents an important increment of objects relative to the 1987 edition of the Lynga catalogue.
In this new edition (version 2.1), we deleted 5 objects and included 4 new open clusters or candidates in the database. Virtually all papers published after the version 2.0 of the catalogue were investigated resulting in the inclusion of new fundamental parameters, mean radial velocities and metallicities for various clusters.
This catalogue is being constantly updated and maintained in electronic form
for widest possible accessibility. The latest version (2.1) can be accessed
on line here