diff --git a/src/celestia/hud.cpp b/src/celestia/hud.cpp
index 49fc948d73..02bb921e02 100644
--- a/src/celestia/hud.cpp
+++ b/src/celestia/hud.cpp
@@ -537,9 +537,24 @@ displayPlanetInfo(const util::NumberFormatter& formatter,
     {
         return;
     }
-
-    overlay.printf(_("Radius: %s\n"),
-                   DistanceKmToStr(formatter, body.getRadius(), 5, hudSettings.measurementSystem));
+    else if (body.isEllipsoid() && !body.isSphere()) // show mean radius along with triaxial semi-axes
+    {
+        Eigen::Vector3f semiAxes = body.getSemiAxes();
+        double radiusMean = cbrt(semiAxes.prod());
+        double axis0 = semiAxes.x();
+        double axis1 = semiAxes.z();
+        double axis2 = semiAxes.y(); // polar semi-axis
+        overlay.print(_("Radius: {} ({} " UTF8_MULTIPLICATION_SIGN " {} " UTF8_MULTIPLICATION_SIGN " {})\n"),
+                      DistanceKmToStr(formatter, radiusMean, 5, hudSettings.measurementSystem),
+                      DistanceKmToStr(formatter, axis0, 5, hudSettings.measurementSystem),
+                      DistanceKmToStr(formatter, axis1, 5, hudSettings.measurementSystem),
+                      DistanceKmToStr(formatter, axis2, 5, hudSettings.measurementSystem));
+    }
+    else
+    {
+        overlay.print(_("Radius: {}\n"),
+                      DistanceKmToStr(formatter, body.getRadius(), 5, hudSettings.measurementSystem));
+    }
 
     displayApparentDiameter(overlay, body.getRadius(), distanceKm, loc);
 
@@ -593,7 +608,7 @@ displayPlanetInfo(const util::NumberFormatter& formatter,
         if (body.getRotationModel(t)->isPeriodic())
             displayRotationPeriod(formatter, overlay, body.getRotationModel(t)->getPeriod());
 
-        if (body.getName() != "Earth" && body.getMass() > 0)
+        if (body.getMass() > 0)
             displayMass(formatter, overlay, body.getMass(), hudSettings.measurementSystem);
 
         if (float density = body.getDensity(); density > 0)