diff --git a/simgear/scene/sky/dome.cxx b/simgear/scene/sky/dome.cxx
index 3cdc9923..5304a36b 100644
--- a/simgear/scene/sky/dome.cxx
+++ b/simgear/scene/sky/dome.cxx
@@ -185,6 +185,7 @@ SGSkyDome::build( double hscale, double vscale, simgear::SGReaderWriterOptions *
     // force a repaint of the sky colors with ugly defaults
     repaint(SGVec3f(1, 1, 1), SGVec3f(1, 1, 1), SGVec3f(1, 1, 1), 0.0, 5000.0 );
     dome_transform = new osg::MatrixTransform;
+    dome_transform->setName("SkyDome transform");
     dome_transform->addChild(geode);
 
     return dome_transform.get();
diff --git a/simgear/scene/sky/sky.cxx b/simgear/scene/sky/sky.cxx
index 796b1522..1c7f13e5 100644
--- a/simgear/scene/sky/sky.cxx
+++ b/simgear/scene/sky/sky.cxx
@@ -53,6 +53,7 @@ SGSky::SGSky( void ) {
     clouds_3d_density = 0.8;
 
     pre_root = new osg::Group;
+    pre_root->setName("SGSky-pre-root");
     pre_root->setNodeMask(simgear::BACKGROUND_BIT);
     osg::StateSet* preStateSet = new osg::StateSet;
     preStateSet->setAttribute(new osg::Depth(osg::Depth::LESS, 0.0, 1.0,
@@ -63,8 +64,11 @@ SGSky::SGSky( void ) {
     cloud_root->setName("SGSky-cloud-root");
 
     pre_transform = new osg::Group;
+    pre_transform->setName("SGSky-pre-transform");
+
     _ephTransform = new osg::MatrixTransform;
-    
+    _ephTransform->setName("SGSky-eph-transform");
+
     // Set up a RNG that is repeatable within 10 minutes to ensure that clouds
     // are synced up in multi-process deployments.
     mt_init_time_10(&seed);