diff --git a/ihm/help/about b/ihm/help/about
index 7d8a1e8..19422cf 100644
--- a/ihm/help/about
+++ b/ihm/help/about
@@ -11,12 +11,23 @@ Coordinate systems list :
 <li>ECLIPJ2000 - Ecliptic coordinates based upon the J2000 frame</li>
 <li>EME - Earth Mean Equator and Equinox</li>
 <li>GPHIO - Ganymede Phi-Omega</li>
+<li>GRIGGSKELL_EME EME2000 centered on asteroid GRIGG-SKJELLERUP- </li>
 <li>GSE - Geocentric Solar Ecliptic</li>
 <li>GSEQ - Geocentric Solar Equatorial</li>
 <li>GSM - Geocentric Solar Magnetospheric</li>
+<li>HALLEY_EME -EME2000 centered on asteroid HALLEY </li>
 <li>HCI - Heliocentric Inertial</li>
 <li>HEE - Heliocentric Earth Ecliptic</li>
 <li>HEEQ - Heliocentric Earth Equatorial</li>
+<li>IAU_EARTH - International Astronomical Union Earth</li>
+<li>IAU_JUPITER - International Astronomical Union Jupiter</li>
+<li>IAU_MARS - International Astronomical Union Mars</li>
+<li>IAU_MERCURY - International Astronomical Union Mercury</li>
+<li>IAU_NEPTUNE - International Astronomical Union Neptune</li>
+<li>IAU_PLUTO - International Astronomical Union Pluton</li>
+<li>IAU_SATURN - International Astronomical Union Saturn</li>
+<li>IAU_URANUS - International Astronomical Union Uranus</li>
+<li>IAU_VENUS - International Astronomical Union Venus</li>
 <li>J2000 - Earth mean equator, dynamical equinox of J2000</li>
 <li>JECLIP - ECLIPJ2000 centered on Jupiter</li>
 <li>JEME - EME2000 centered on Jupiter</li>
@@ -35,8 +46,16 @@ Coordinate systems list :
 <li>MESO - Mercury-centric Solar Orbital</li>
 <li>MME - Mars Mean Equator</li>
 <li>MSO - Mars-centric Solar Orbital</li>
+<li>NECLIP - ECLIPJ2000 centered on Neptune</li>
+<li>PEME -EME2000 centered on Pluto </li>
+<li>PECLIP - ECLIPJ2000 centered on Pluto</li>
+<li>UEME - EME2000 centered on Uranus</li>
 <li>SM - Solar Magnetic coordinates</li>
 <li>STEINS_EME - EME2000 centered on asteroid STEINS</li>
+<li>SYSTEM_3 - SYSTEM 3 centered on Jupiter</li>
+<li>TIIS - TItan Inter-action coordinate System</li>
+<li>UECLIP - ECLIPJ2000 centered on Uranus</li>
+<li>UEME - EME2000 centered on Uranus</li>
 <li>VME - Venus Mean Equator</li>
 <li>VSO - Venus Solar Orbital</li>
 </ul>
--
libgit2 0.21.2