<page_title> Orbital period </page_title> <section_title> Binary stars </section_title> <table> <cell> Alpha Centauri AB <col_header> Binary star </col_header> </cell> <cell> 79.91 years <col_header> Orbital period </col_header> </cell> </table>
The binary star Alpha Centauri AB has a period of 79.91 years.