diff --git a/src/core/modules/AtmosphereShowMySky.cpp b/src/core/modules/AtmosphereShowMySky.cpp
index 01edb91bdba1b..946c90dc09f63 100644
--- a/src/core/modules/AtmosphereShowMySky.cpp
+++ b/src/core/modules/AtmosphereShowMySky.cpp
@@ -98,6 +98,7 @@ struct SkySettings : ShowMySky::Settings, QObject
 	static constexpr const char* zeroOrderScatteringPropName() { return "LandscapeMgr.flagAtmosphereZeroOrderScattering"; }
 	static constexpr const char* singleScatteringPropName()    { return "LandscapeMgr.flagAtmosphereSingleScattering"; }
 	static constexpr const char* multipleScatteringPropName()  { return "LandscapeMgr.flagAtmosphereMultipleScattering"; }
+	static constexpr const char* pseudoMirrorPropName()        { return "LandscapeMgr.flagAtmospherePseudoMirror"; }
 	bool inited=false; // We have to lazy initialize because at the time of construction, LandscapeMgr isn't registered with StelPropertyMgr
 	void init()
 	{
@@ -119,6 +120,11 @@ struct SkySettings : ShowMySky::Settings, QObject
 			QObject::connect(prop, &StelProperty::changed, this, [this](const QVariant& v) { multipleScatteringEnabled_=v.toBool(); });
 			multipleScatteringEnabled_ = prop->getValue().toBool();
 		}
+		{
+			const auto prop = propMan->getProperty(pseudoMirrorPropName());
+			QObject::connect(prop, &StelProperty::changed, this, [this](const QVariant& v) { pseudoMirrorEnabled_=v.toBool(); });
+			pseudoMirrorEnabled_ = prop->getValue().toBool();
+		}
 		inited=true;
 	}
 };
diff --git a/src/core/modules/LandscapeMgr.cpp b/src/core/modules/LandscapeMgr.cpp
index 6add0263f7f12..d7a4266f7329a 100644
--- a/src/core/modules/LandscapeMgr.cpp
+++ b/src/core/modules/LandscapeMgr.cpp
@@ -1768,6 +1768,12 @@ void LandscapeMgr::setFlagAtmosphereMultipleScattering(const bool enable)
 	emit flagAtmosphereMultipleScatteringChanged(enable);
 }
 
+void LandscapeMgr::setFlagAtmospherePseudoMirror(const bool enable)
+{
+	atmospherePseudoMirrorEnabled=enable;
+	emit flagAtmospherePseudoMirrorChanged(enable);
+}
+
 void LandscapeMgr::setAtmosphereEclipseSimulationQuality(const int quality)
 {
 	if(getAtmosphereEclipseSimulationQuality() == quality)
@@ -1843,6 +1849,11 @@ bool LandscapeMgr::getFlagAtmosphereMultipleScattering() const
 	return atmosphereMultipleScatteringEnabled;
 }
 
+bool LandscapeMgr::getFlagAtmospherePseudoMirror() const
+{
+	return atmospherePseudoMirrorEnabled;
+}
+
 int LandscapeMgr::getAtmosphereEclipseSimulationQuality() const
 {
 	const auto conf=StelApp::getInstance().getSettings();
diff --git a/src/core/modules/LandscapeMgr.hpp b/src/core/modules/LandscapeMgr.hpp
index d383e837ee320..1e3f3652b7898 100644
--- a/src/core/modules/LandscapeMgr.hpp
+++ b/src/core/modules/LandscapeMgr.hpp
@@ -175,6 +175,10 @@ class LandscapeMgr : public StelModule
 		   READ getFlagAtmosphereMultipleScattering
 		   WRITE setFlagAtmosphereMultipleScattering
 		   NOTIFY flagAtmosphereMultipleScatteringChanged)
+	Q_PROPERTY(bool flagAtmospherePseudoMirror
+		   READ getFlagAtmospherePseudoMirror
+		   WRITE setFlagAtmospherePseudoMirror
+		   NOTIFY flagAtmospherePseudoMirrorChanged)
 	Q_PROPERTY(int atmosphereEclipseSimulationQuality
 		   READ getAtmosphereEclipseSimulationQuality
 		   WRITE setAtmosphereEclipseSimulationQuality
@@ -567,6 +571,9 @@ public slots:
 	bool getFlagAtmosphereMultipleScattering() const;
 	void setFlagAtmosphereMultipleScattering(bool enable);
 
+	bool getFlagAtmospherePseudoMirror() const;
+	void setFlagAtmospherePseudoMirror(bool enable);
+
 	int getAtmosphereEclipseSimulationQuality() const;
 	void setAtmosphereEclipseSimulationQuality(int quality);
 
@@ -718,6 +725,7 @@ public slots:
 	void flagAtmosphereZeroOrderScatteringChanged(bool value);
 	void flagAtmosphereSingleScatteringChanged(bool value);
 	void flagAtmosphereMultipleScatteringChanged(bool value);
+	void flagAtmospherePseudoMirrorChanged(bool value);
 	void atmosphereEclipseSimulationQualityChanged(unsigned quality);
 	void atmosphereNoScatterChanged(const bool noScatter);
 	void cardinalPointsDisplayedChanged(const bool displayed);
@@ -883,6 +891,7 @@ private slots:
 	bool atmosphereZeroOrderScatteringEnabled=false;
 	bool atmosphereSingleScatteringEnabled=true;
 	bool atmosphereMultipleScatteringEnabled=true;
+	bool atmospherePseudoMirrorEnabled=true;
 
 	QString atmosphereShowMySkyStatusText;
 	bool atmosphereShowMySkyStoppedWithError=false;
diff --git a/src/gui/AtmosphereDialog.cpp b/src/gui/AtmosphereDialog.cpp
index 98e6e0359d9b1..5740b3c377003 100644
--- a/src/gui/AtmosphereDialog.cpp
+++ b/src/gui/AtmosphereDialog.cpp
@@ -108,6 +108,7 @@ void AtmosphereDialog::createDialogContent()
 	connectBoolProperty(ui->showMySky_zeroOrderEnabled, "LandscapeMgr.flagAtmosphereZeroOrderScattering");
 	connectBoolProperty(ui->showMySky_singleScatteringEnabled, "LandscapeMgr.flagAtmosphereSingleScattering");
 	connectBoolProperty(ui->showMySky_multipleScatteringEnabled, "LandscapeMgr.flagAtmosphereMultipleScattering");
+	connectBoolProperty(ui->showMySky_pseudoMirrorEnabled, "LandscapeMgr.flagAtmospherePseudoMirror");
 	connectIntProperty(ui->showMySky_eclipseSimulationQualitySpinBox, ECLIPSE_SIM_QUALITY_PROPERTY);
 #else
 	ui->visualModelConfigGroup->hide();
diff --git a/src/gui/atmosphereDialog.ui b/src/gui/atmosphereDialog.ui
index a869eb30a905e..fb698701a4916 100644
--- a/src/gui/atmosphereDialog.ui
+++ b/src/gui/atmosphereDialog.ui
@@ -238,6 +238,13 @@
               </property>
              </widget>
             </item>
+            <item>
+             <widget class="QCheckBox" name="showMySky_pseudoMirrorEnabled">
+              <property name="text">
+               <string>Mirror the sky under the horizon</string>
+              </property>
+             </widget>
+            </item>
            </layout>
           </widget>
          </item>
@@ -434,11 +441,6 @@
    <header>Dialog.hpp</header>
    <container>1</container>
   </customwidget>
-  <customwidget>
-   <class>StelCloseButton</class>
-   <extends>QPushButton</extends>
-   <header>gui/StelCloseButton.hpp</header>
-  </customwidget>
  </customwidgets>
  <tabstops>
   <tabstop>atmosphereModel</tabstop>