def eso_query(ra, dec, radius=1., dp_types=['CUBE','IMAGE'], extra=''):
    """
    Open browser with ESO archive query around central position.
    
    ``radius`` in arcmin.
    """
    #ra, dec = self.get('pan fk5').strip().split()
    
    dp_type = ','.join(dp_types)
    
    url = (f'https://archive.eso.org/scienceportal/home?'
            f'pos={ra},{dec}&r={radius/60.}&dp_type={dp_type}{extra}')
                    
    #os.system(f'open {url}')
    return url