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# Source code for astroquery.vizier

    # Licensed under a 3-clause BSD style license - see LICENSE.rst
    """
    VizieR Query Tool
    -----------------

    This package is for querying the VizieR service, primarily hosted at:
    https://vizier.cds.unistra.fr

    Note: If the access to catalogues with VizieR was helpful for your research
    work, the following acknowledgment would be appreciated::

      This research has made use of the VizieR catalogue access tool, CDS,
      Strasbourg, France.  The original description of the VizieR service was
      published in A&AS 143, 23
    """
    from astropy import config as _config

    class Conf(_config.ConfigNamespace):
        """
        Configuration parameters for `astroquery.vizier`.
        """

        server = _config.ConfigItem(
            ['vizier.cds.unistra.fr',
             'vizier.cfa.harvard.edu',
             'vizier.nao.ac.jp',
             'vizier.hia.nrc.ca',
             'vizier.ast.cam.ac.uk',
             'vizier.iucaa.ernet.in',
             'vizier.china-vo.org',
             ],
            'Name of the VizieR mirror to use.')

        timeout = _config.ConfigItem(
            60,
            'Default timeout for connecting to server',
            aliases=['astropy.coordinates.name_resolve.name_resolve_timeout'])

        row_limit = _config.ConfigItem(
            50,
            'Maximum number of rows that will be fetched from the result '
            '(set to -1 for unlimited).')

    conf = Conf()

    from .core import Vizier, VizierClass

    __all__ = ['Vizier', 'VizierClass',
               'Conf', 'conf',
               ]