<table>
<caption>Planets</caption>
<thead>
<tr>
<th scope="col">Planet</th>
<th scope="col">Diameter (km)</th>
<th scope="col">Length of Day (hours)</th>
<th scope="col">Mean Temp (C)</th>
</tr>
</thead>
<tbody>
<tr>
<td>Mercury</td>
<td>4879</td>
<td>4222.6</td>
<td>167</td>
</tr>
<tr>
<td>Venus</td>
<td>12,104</td>
<td>2802.0</td>
<td>464</td>
</tr>
<tr>
<td>Mars</td>
<td>6792</td>
<td>24.7</td>
<td>-65</td>
</tr>
<tr>
<td>Saturn</td>
<td>120,536</td>
<td>10.7</td>
<td>-140</td>
</tr>
</tbody>
</table>
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