@classmethod<EOL><INDENT>def from_cone(cls, center,<EOL>radius=<NUM_LIT:3>*u.arcmin,<EOL>magnitudelimit=None,<EOL>**kw):<DEDENT>
<EOL>center = parse_center(center)<EOL>criteria = {}<EOL>if magnitudelimit is not None:<EOL><INDENT>criteria[cls.defaultfilter + '<STR_LIT>'] = '<STR_LIT>'.format(magnitudelimit)<EOL><DEDENT>v = Vizier(columns=cls.columns,<EOL>column_filters=criteria)<EOL>v.ROW_LIMIT = -<NUM_LIT:1><EOL>print('<STR_LIT>'.format(cls.name, center, radius, magnitudelimit))<EOL>table = v.query_region(coordinates=center,<EOL>radius=radius,<EOL>catalog=cls.catalog)[<NUM_LIT:0>]<EOL>c = cls(cls.standardize_table(table))<EOL>c.standardized.meta['<STR_LIT>'] = cls.catalog<EOL>c.standardized.meta['<STR_LIT>'] = center<EOL>c.standardized.meta['<STR_LIT>'] = radius<EOL>c.standardized.meta['<STR_LIT>'] = magnitudelimit<EOL>return c<EOL>
Create a Constellation from a cone search of the sky,
characterized by a positional center and a radius from it.

Parameters
----------
center : SkyCoord object
    The center around which the query will be made.
radius : float, with units of angle
    The angular radius for the query.
magnitudelimit : float
    The maximum magnitude to include in the download.
    (This is explicitly thinking UV/optical/IR, would
    need to change to flux to be able to include other
    wavelengths.)