docs: def Vizier_query(self, viz_cat, cat_name, ra, dec, radius, ra_col='RAJ2000', dec_col='DEJ2000', columns=["**"], append=False, group=True, **kwargs):
          """
          Use astroquery to search a catalog for sources within a search cone
          
          Parameters
          ----------
          viz_cat: str
              The catalog string from Vizier (e.g. 'II/246' for 2MASS PSC)
          cat_name: str
              A name for the imported catalog (e.g. '2MASS')
          ra: astropy.units.quantity.Quantity
              The RA of the center of the cone search
          dec: astropy.units.quantity.Quantity
              The Dec of the center of the cone search
          radius: astropy.units.quantity.Quantity
              The radius of the cone search
          ra_col: str
              The name of the RA column in the raw catalog
          dec_col: str
              The name of the Dec column in the raw catalog
          columns: sequence
              The list of columns to pass to astroquery
          append: bool
              Append the catalog rather than replace
          """
          # Verify the cat_name
          if self._catalog_check(cat_name, append=append):
              
              # Cone search Vizier
              print("Searching {} for sources within {} of ({}, {}). Please be patient...".format(viz_cat, radius, ra, dec))
              crds = coord.SkyCoord(ra=ra, dec=dec, frame='icrs')
              V = Vizier(columns=columns, **kwargs)
              V.ROW_LIMIT = -1
              
              try:
                  data = V.query_region(crds, radius=radius, catalog=viz_cat)[0]
              except:
                  print("No data found in {} within {} of ({}, {}).".format(viz_cat, radius, ra, dec))
                  return
              
              # Ingest the data
              self.ingest_data(data, cat_name, 'id', ra_col=ra_col, dec_col=dec_col, cat_loc=viz_cat, append=append)
              
              # Regroup
              if len(self.catalogs)>1 and group:
                  self.group_sources(self.xmatch_radius)