Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
List of exoplanets detected by radial velocity
Table title:
List of confirmed extrasolar planets
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Planet </th><th colspan=1 rowspan=1 > Mass (MJ) </th><th colspan=1 rowspan=1 > Period (d) </th><th colspan=1 rowspan=1 > Semi-major axis (AU) </th><th colspan=1 rowspan=1 > Eccentricity </th><th colspan=1 rowspan=1 > Inclination (°) </th><th colspan=1 rowspan=1 > Year of discovery </th></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > Gliese 876 d </td><td colspan=1 rowspan=1 > 0.021 </td><td class="highlighted"  colspan=1 rowspan=1 > 1.938 </td><td colspan=1 rowspan=1 > 0.021 </td><td colspan=1 rowspan=1 > 0.2067 </td><td colspan=1 rowspan=1 > 50.201 </td><td colspan=1 rowspan=1 > 2005 </td></tr>
<tr> <td colspan=1 rowspan=1 > GJ 3634 b </td><td colspan=1 rowspan=1 > 0.022 </td><td colspan=1 rowspan=1 > 2.646 </td><td colspan=1 rowspan=1 > 0.029 </td><td colspan=1 rowspan=1 > 0.0801 </td><td colspan=1 rowspan=1 > 58.683 </td><td colspan=1 rowspan=1 > 2011 </td></tr>
<tr> <td colspan=1 rowspan=1 > Gliese 581 e </td><td colspan=1 rowspan=1 > 0.008 </td><td colspan=1 rowspan=1 > 3.149 </td><td colspan=1 rowspan=1 > 0.028 </td><td colspan=1 rowspan=1 > 0.0261 </td><td colspan=1 rowspan=1 > 50.537 </td><td colspan=1 rowspan=1 > 2009 </td></tr>
<tr> <td colspan=1 rowspan=1 > Tau Boötis b </td><td colspan=1 rowspan=1 > 8.389 </td><td colspan=1 rowspan=1 > 3.312 </td><td colspan=1 rowspan=1 > 0.048 </td><td colspan=1 rowspan=1 > 0.0236 </td><td colspan=1 rowspan=1 > 150.521 </td><td colspan=1 rowspan=1 > 1996 </td></tr>
<tr> <td colspan=1 rowspan=1 > COROT-7c </td><td colspan=1 rowspan=1 > 0.026 </td><td colspan=1 rowspan=1 > 3.698 </td><td colspan=1 rowspan=1 > 0.046 </td><td colspan=1 rowspan=1 > 0.0018 </td><td colspan=1 rowspan=1 > 78.206 </td><td colspan=1 rowspan=1 > 2009 </td></tr>
<tr> <td colspan=1 rowspan=1 > Upsilon Andromedae b </td><td colspan=1 rowspan=1 > 1.266 </td><td colspan=1 rowspan=1 > 4.617 </td><td colspan=1 rowspan=1 > 0.059 </td><td colspan=1 rowspan=1 > 0.0226 </td><td colspan=1 rowspan=1 > 147.169 </td><td colspan=1 rowspan=1 > 1996 </td></tr>
<tr> <td colspan=1 rowspan=1 > Gliese 581 b </td><td colspan=1 rowspan=1 > 0.059 </td><td colspan=1 rowspan=1 > 5.369 </td><td colspan=1 rowspan=1 > 0.041 </td><td colspan=1 rowspan=1 > 0.0159 </td><td colspan=1 rowspan=1 > 57.259 </td><td colspan=1 rowspan=1 > 2005 </td></tr>
<tr> <td colspan=1 rowspan=1 > Gliese 581 c </td><td colspan=1 rowspan=1 > 0.021 </td><td colspan=1 rowspan=1 > 12.929 </td><td colspan=1 rowspan=1 > 0.073 </td><td colspan=1 rowspan=1 > 0.1674 </td><td colspan=1 rowspan=1 > 53.550 </td><td colspan=1 rowspan=1 > 2007 </td></tr>
<tr> <td colspan=1 rowspan=1 > HD 38529 Ab </td><td colspan=1 rowspan=1 > 0.782 </td><td colspan=1 rowspan=1 > 14.310 </td><td colspan=1 rowspan=1 > 0.129 </td><td colspan=1 rowspan=1 > 0.2477 </td><td colspan=1 rowspan=1 > 123.331 </td><td colspan=1 rowspan=1 > 2000 </td></tr>
<tr> <td colspan=1 rowspan=1 > 55 Cancri b </td><td colspan=1 rowspan=1 > 1.030 </td><td colspan=1 rowspan=1 > 14.651 </td><td colspan=1 rowspan=1 > 0.118 </td><td colspan=1 rowspan=1 > 0.0096 </td><td colspan=1 rowspan=1 > 126.780 </td><td colspan=1 rowspan=1 > 1996 </td></tr>
<tr> <td colspan=1 rowspan=1 > Gliese 876 c </td><td colspan=1 rowspan=1 > 0.714 </td><td colspan=1 rowspan=1 > 30.088 </td><td colspan=1 rowspan=1 > 0.131 </td><td colspan=1 rowspan=1 > 0.2559 </td><td colspan=1 rowspan=1 > 48.071 </td><td colspan=1 rowspan=1 > 2001 </td></tr>
<tr> <td colspan=1 rowspan=1 > 55 Cancri c </td><td colspan=1 rowspan=1 > 0.214 </td><td colspan=1 rowspan=1 > 44.364 </td><td colspan=1 rowspan=1 > 0.247 </td><td colspan=1 rowspan=1 > 0.0048 </td><td colspan=1 rowspan=1 > 53.241 </td><td colspan=1 rowspan=1 > 2002 </td></tr>
<tr> <td colspan=1 rowspan=1 > Gliese 876 b </td><td colspan=1 rowspan=1 > 2.276 </td><td colspan=1 rowspan=1 > 61.117 </td><td colspan=1 rowspan=1 > 0.211 </td><td colspan=1 rowspan=1 > 0.0324 </td><td colspan=1 rowspan=1 > 83.929 </td><td colspan=1 rowspan=1 > 1998 </td></tr>
<tr> <td colspan=1 rowspan=1 > Gliese 581 d </td><td colspan=1 rowspan=1 > 0.026 </td><td colspan=1 rowspan=1 > 66.800 </td><td colspan=1 rowspan=1 > 0.218 </td><td colspan=1 rowspan=1 > 0.3809 </td><td colspan=1 rowspan=1 > 58.257 </td><td colspan=1 rowspan=1 > 2007 </td></tr>
<tr> <td colspan=1 rowspan=1 > Gliese 876 e </td><td colspan=1 rowspan=1 > 0.046 </td><td colspan=1 rowspan=1 > 124.262 </td><td colspan=1 rowspan=1 > 0.338 </td><td colspan=1 rowspan=1 > 0.0546 </td><td colspan=1 rowspan=1 > 120.548 </td><td colspan=1 rowspan=1 > 2010 </td></tr>
<tr> <td colspan=1 rowspan=1 > HD 60532 b </td><td colspan=1 rowspan=1 > 3.150 </td><td colspan=1 rowspan=1 > 201.825 </td><td colspan=1 rowspan=1 > 0.761 </td><td colspan=1 rowspan=1 > 0.2776 </td><td colspan=1 rowspan=1 > 162.580 </td><td colspan=1 rowspan=1 > 2008 </td></tr>
<tr> <td colspan=1 rowspan=1 > Upsilon Andromedae c </td><td colspan=1 rowspan=1 > 6.673 </td><td colspan=1 rowspan=1 > 237.746 </td><td colspan=1 rowspan=1 > 0.753 </td><td colspan=1 rowspan=1 > 0.2396 </td><td colspan=1 rowspan=1 > 16.746 </td><td colspan=1 rowspan=1 > 1999 </td></tr>
<tr> <td colspan=1 rowspan=1 > 55 Cancri f </td><td colspan=1 rowspan=1 > 0.190 </td><td colspan=1 rowspan=1 > 259.805 </td><td colspan=1 rowspan=1 > 0.804 </td><td colspan=1 rowspan=1 > 0.2963 </td><td colspan=1 rowspan=1 > 54.619 </td><td colspan=1 rowspan=1 > 2005 </td></tr>
<tr> <td colspan=1 rowspan=1 > Epsilon Reticuli b </td><td colspan=1 rowspan=1 > 4.500 </td><td colspan=1 rowspan=1 > 415.241 </td><td colspan=1 rowspan=1 > 1.156 </td><td colspan=1 rowspan=1 > 0.0583 </td><td colspan=1 rowspan=1 > 17.403 </td><td colspan=1 rowspan=1 > 2000 </td></tr>
<tr> <td colspan=1 rowspan=1 > Iota Draconis b </td><td colspan=1 rowspan=1 > 9.395 </td><td colspan=1 rowspan=1 > 511.098 </td><td colspan=1 rowspan=1 > 1.272 </td><td colspan=1 rowspan=1 > 0.7124 </td><td colspan=1 rowspan=1 > 69.920 </td><td colspan=1 rowspan=1 > 2002 </td></tr>
<tr> <td colspan=1 rowspan=1 > HD 147513 b </td><td colspan=1 rowspan=1 > 1.268 </td><td colspan=1 rowspan=1 > 540.361 </td><td colspan=1 rowspan=1 > 1.265 </td><td colspan=1 rowspan=1 > 0.2577 </td><td colspan=1 rowspan=1 > 111.525 </td><td colspan=1 rowspan=1 > 2002 </td></tr>
<tr> <td colspan=1 rowspan=1 > Pollux b </td><td colspan=1 rowspan=1 > 2.409 </td><td colspan=1 rowspan=1 > 589.636 </td><td colspan=1 rowspan=1 > 1.693 </td><td colspan=1 rowspan=1 > 0.0204 </td><td colspan=1 rowspan=1 > 90.684 </td><td colspan=1 rowspan=1 > 2006 </td></tr>
<tr> <td colspan=1 rowspan=1 > HD 60532 c </td><td colspan=1 rowspan=1 > 7.457 </td><td colspan=1 rowspan=1 > 607.065 </td><td colspan=1 rowspan=1 > 1.586 </td><td colspan=1 rowspan=1 > 0.0383 </td><td colspan=1 rowspan=1 > 162.060 </td><td colspan=1 rowspan=1 > 2008 </td></tr>
<tr> <td colspan=1 rowspan=1 > Mu Arae b </td><td colspan=1 rowspan=1 > 1.709 </td><td colspan=1 rowspan=1 > 643.252 </td><td colspan=1 rowspan=1 > 1.495 </td><td colspan=1 rowspan=1 > 0.1284 </td><td colspan=1 rowspan=1 > 78.867 </td><td colspan=1 rowspan=1 > 2000 </td></tr>
<tr> <td colspan=1 rowspan=1 > HD 128311 c </td><td colspan=1 rowspan=1 > 3.215 </td><td colspan=1 rowspan=1 > 918.751 </td><td colspan=1 rowspan=1 > 1.720 </td><td colspan=1 rowspan=1 > 0.1709 </td><td colspan=1 rowspan=1 > 49.731 </td><td colspan=1 rowspan=1 > 2005 </td></tr>
<tr> <td colspan=1 rowspan=1 > HD 10647 b </td><td colspan=1 rowspan=1 > 1.493 </td><td colspan=1 rowspan=1 > 1040.389 </td><td colspan=1 rowspan=1 > 2.055 </td><td colspan=1 rowspan=1 > 0.1632 </td><td colspan=1 rowspan=1 > 38.640 </td><td colspan=1 rowspan=1 > 2003 </td></tr>
<tr> <td colspan=1 rowspan=1 > Upsilon Andromedae d </td><td colspan=1 rowspan=1 > 6.094 </td><td colspan=1 rowspan=1 > 1302.605 </td><td colspan=1 rowspan=1 > 2.527 </td><td colspan=1 rowspan=1 > 0.3181 </td><td colspan=1 rowspan=1 > 42.633 </td><td colspan=1 rowspan=1 > 1999 </td></tr>
<tr> <td colspan=1 rowspan=1 > HAT-P-17c </td><td colspan=1 rowspan=1 > 1.416 </td><td colspan=1 rowspan=1 > 1797.885 </td><td colspan=1 rowspan=1 > 2.748 </td><td colspan=1 rowspan=1 > 0.0968 </td><td colspan=1 rowspan=1 > 77.217 </td><td colspan=1 rowspan=1 > 2010 </td></tr>
<tr> <td colspan=1 rowspan=1 > Epsilon Eridani b </td><td colspan=1 rowspan=1 > 1.552 </td><td colspan=1 rowspan=1 > 2502.236 </td><td colspan=1 rowspan=1 > 3.383 </td><td colspan=1 rowspan=1 > 0.7021 </td><td colspan=1 rowspan=1 > 30.110 </td><td colspan=1 rowspan=1 > 2000 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > 55 Cancri d </td><td colspan=1 rowspan=1 > 4.783 </td><td class="highlighted"  colspan=1 rowspan=1 > 5169.447 </td><td colspan=1 rowspan=1 > 5.901 </td><td colspan=1 rowspan=1 > 0.0141 </td><td colspan=1 rowspan=1 > 53.031 </td><td colspan=1 rowspan=1 > 2002 </td></tr>
</table>
Question:
What are the most extreme exoplanet periods?
Answer:
The longest period of an exoplanet is 55 Cancri d, which takes 5169 days and the shortest period is Gliese 876 d, which takes just 1.938 days.