diff --git a/atmosphere/public/earth.glb b/atmosphere/public/earth.glb
new file mode 100644
index 000000000..eb700c787
Binary files /dev/null and b/atmosphere/public/earth.glb differ
diff --git a/atmosphere/public/iss.glb b/atmosphere/public/iss.glb
new file mode 100644
index 000000000..c838f9ad2
Binary files /dev/null and b/atmosphere/public/iss.glb differ
diff --git a/atmosphere/src/App.jsx b/atmosphere/src/App.jsx
index 013e6b445..031a851b1 100644
--- a/atmosphere/src/App.jsx
+++ b/atmosphere/src/App.jsx
@@ -32,10 +32,9 @@ const EARTH_RADIUS = 6378137;
 
 const WEATHER_INTERVAL = 5 * 60 * 1000;
 
-const TIME_SCALE = 10;
+const TIME_SCALE = 100;
 
-// 初期時刻: 正午 (12:00)
-const INITIAL_DATE = new Date('2024-06-21T16:00:00');
+const INITIAL_DATE = new Date('2024-06-21T12:00:00');
 
 // --- Weather Presets (天候設定) ---
 const WEATHER_PRESETS = [
@@ -73,7 +72,7 @@ const WEATHER_PRESETS = [
 const LOCATIONS = [
   { name: 'Tokyo', longitude: 139.7671, latitude: 35.6812, heading: 180, pitch: -5, distance: 300 },
   { name: 'Fuji', longitude: 138.7278, latitude: 35.3606, heading: 0, pitch: -10, distance: 4000 },
-  { name: 'Space', longitude: 139.7671, latitude: 35.6812, heading: 0, pitch: -90, distance: 10000000 },
+  { name: 'Space', longitude: 139.7671, latitude: 35.6812, heading: 0, pitch: -90, distance: 100000 },
 ];
 
 // --- Shared State for Synchronization ---
@@ -290,7 +289,7 @@ function AtmosphereScene() {
               />
             ))}
           </Clouds>
-          <AerialPerspective sky sunLight skyLight />
+          <AerialPerspective sky />
           <ToneMapping mode={ToneMappingMode.AGX} />
         </EffectComposer>
       </Atmosphere>
@@ -551,8 +550,8 @@ function CameraSync() {
 
 function AvatarLayer() {
   return (
-    <Canvas gl={{ alpha: true, antialias: true }}>
-      <PerspectiveCamera makeDefault position={[0, 1.5, 3]} fov={30} />
+    <Canvas gl={{ alpha: true, antialias: true, logarithmicDepthBuffer: true }}>
+      <PerspectiveCamera makeDefault position={[0, 1.5, 3]} fov={40} />
       <CameraSync />
 
       <directionalLight position={[-1, 1, 1]} intensity={1.5} />