Erde-Blick passend auf Jupiter zoomen

public/jupitersystem.php

@@ -940,7 +940,7 @@ function shiftGrsRotation(angleDeg) {
   grsRefAngle = currentAngle + (angleDeg * Math.PI / 180);
 }
 
-function applyEarthView(targetRadius = 200) {
+function applyEarthView(targetRadius = 280) {
   const geoVec = AstronomyEngine.GeoVector(AstronomyEngine.Body.Jupiter, simDate, true);
   const toEarth = { x: -geoVec.x, y: -geoVec.y, z: -geoVec.z };
   const ecl = AstronomyEngine.RotateVector(rotationEqjToEcl, toEarth);
@@ -1146,7 +1146,13 @@ function attachUiHandlers() {
     updateCamera();
   });
 
-  btnEarth.addEventListener('click', () => applyEarthView());
+  btnEarth.addEventListener('click', () => {
+    // Im Erde-Blick sollen alle vier Galileischen Bahnen vollständig sichtbar sein.
+    showOrbits = true;
+    btnOrbits.classList.add('is-active');
+    moonOrbitLines.forEach((line) => { line.visible = true; });
+    applyEarthView(280);
+  });
 
   btnOrbits.addEventListener('click', () => {
     showOrbits = !showOrbits;