NAME

Astro::Catalog::Query::Vizier - A query request to the Vizier catalogs

SYNOPSIS

    $gsc = new Astro::Catalog::Query::2MASS(
            Catalog => '2MASS',
            RA        => $ra,
            Dec       => $dec,
            Radius    => $radius,
            Nout      => $number_out,
            Target    => $object,
        );

    my $catalog = $gsc->querydb();

DESCRIPTION

The module is an object orientated interface to the online Vizier catalogs. Multiple catalogues can be specified using a comma-separated list.

Stores information about an prospective query and allows the query to be made, returning an Astro::Catalog::Query::Vizier object.

The object will by default pick up the proxy information from the HTTP_PROXY and NO_PROXY environment variables, see the LWP::UserAgent documentation for details.

See Astro::Catalog::Query for the catalog-independent methods.

NOTES

See http://vizier.u-strasbg.fr/doc/asu.html for all the options supported by Vizier (although they will be the translated form rather than the abstracted arguments used by "Astro::Catalog".

COPYRIGHT

This program was written as part of the eSTAR project and is free software; you can redistribute it and/or modify it under the terms of the GNU Public License.

AUTHORS

Alasdair Allan <aa@astro.ex.ac.uk>, Tim Jenness <tjenness@cpan.org>