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New catalogue of optically visible open clusters and candidates
We have compiled a new catalogue of open clusters in the Galaxy whichupdates the previous catalogues of Lyngå (\cite{Lynga1987}) and ofMermilliod (\cite{Mermilliod1995}) (included in the WEBDA database). Newobjects and new data, in particular, data on kinematics (proper motions)that were not present in the old catalogues, have been included.Virtually all the clusters (1537) presently known were included, whichrepresents an increment of about 347 objects relative to the Lyngå(\cite{Lynga1987}) catalogue. The catalogue is presented in a singletable containing all the important data, which makes it easy to use. Thecatalogue can be accessed on line either athttp://www.astro.iag.usp.br/~wilton/ or as an electronic table whichwill be made available at the CDS. Tables 1a, 1b, 2 and 3 are onlyavailable in electronic form at http://www.astro.iag.usp.br/wilton/, orat the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) orvia http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/389/871
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