�� <html> <title>Kepler's Third Law</title> <ul> <h1>Kepler's Third Law</h1> <table> <tr> <td><b>Planet</b> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <td><b>Semimajor&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br> Axis, a </b> <td><b>Orbital&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br> Period,<br> P</b> <td><b>P<sup>2</sup>/a<sup>3</sup></b> <tr> <td> <td>(AU) <td>(years) <td> <tr><td>Mercury <td>0.387 <td>0.241 <td>1.002 <tr><td>Venus <td>0.723 <td>0.615 <td>1.001 <tr><td>Earth <td>1.000 <td>1.000 <td>1.000 <tr><td>Mars <td>1.524 <td>1.881 <td>1.000 <tr><td>Jupiter <td>5.203 <td>11.86 <td>0.999 <tr><td>Saturn <td>9.537 <td>29.42 <td>0.998 <tr><td>Uranus <td>19.19 <td>83.75 <td>0.993 <tr><td>Neptune <td>30.07 <td>163.7 <td>0.986 </table> </ul> </html>