HD 156668
... that the Super-Earth orbiting HD 156668 has an orbital period of less than five days?
... that the <a href="./Super-Earth" id="mwCK8" rel="mw:WikiLink" title="Super-Earth">Super-Earth</a> orbiting <b id="mwCLA"><a href="./HD_156668" id="mwCLE" rel="mw:WikiLink" title="HD 156668">HD 156668</a></b> has an <a href="./Orbital_period" id="mwCLI" rel="mw:WikiLink" title="Orbital period">orbital period</a> of less than five days?