diff --git a/sim_scenes/featured/center_point_moving_sun_to_earth.py b/sim_scenes/featured/center_point_moving_sun_to_earth.py
index 287a8220f109de20402554515398fbab5038ac0f..995da3d7f1d279f306600b1e15faae30428b218d 100644
--- a/sim_scenes/featured/center_point_moving_sun_to_earth.py
+++ b/sim_scenes/featured/center_point_moving_sun_to_earth.py
@@ -92,7 +92,7 @@ class CenterPointMovingSimLive(EarthSeasonsSimBase):
                                           segments=100)
         # print(points)
         orbit_line = create_orbit_by_points(center_body.position, points, line_color=body.trail_color,
-                                            alpha=alpha, thickness=2)
+                                            alpha=alpha, thickness=4)
         return orbit_line
 
     def create_orbit_lines(self):
@@ -109,7 +109,7 @@ class CenterPointMovingSimLive(EarthSeasonsSimBase):
             else:
                 alpha = 0.2
             start_time = conv_to_astropy_time(self.start_time)
-            orbit_line = self.create_orbit_line(self.sun, body, start_time, alpha=1.0)
+            orbit_line = self.create_orbit_line(self.sun, body, start_time, alpha=0.8)
             if orbit_line is not None:
                 self.orbit_lines.append(orbit_line)
         return self.orbit_lines
@@ -173,20 +173,25 @@ class CenterPointMovingSimLive(EarthSeasonsSimBase):
     def on_ready(self):
         super(CenterPointMovingSimLive, self).on_ready()
 
+        self.sky.rotation_y = 20
+        self.sky.rotation_x = -290
+        self.sky.rotation_z = -95
+
         UrsinaConfig.trail_type = "line"
         # UrsinaConfig.trail_length = 91
         UrsinaConfig.trail_type = "curve_line"
-        UrsinaConfig.trail_length = 250
+        UrsinaConfig.trail_length = 180
         # UrsinaConfig.trail_length = 1000
-        UrsinaConfig.trail_thickness_factor = 2
-        UrsinaConfig.trail_factor = 2
+        UrsinaConfig.trail_thickness_factor = 4
+        UrsinaConfig.trail_alpha = 0.8
+        UrsinaConfig.trail_factor = 4
 
         for body in self.bodies:
-            body.planet.trail_scale = 2
+            body.planet.trail_scale = 0.5
 
-        self.moon.planet.trail_scale = 1
+        self.moon.planet.trail_scale = 0.5
 
-        # WorldGrid().draw_axises(10)
+        # WorldGrid().draw_axises(100)
 
         camera.clip_plane_near = 1
         camera.look_at(Vec3(0, 0, 0))
@@ -248,7 +253,7 @@ class CenterPointMovingSimLive(EarthSeasonsSimBase):
             ec.world_position += ec.right * 0.8 * _dt* UrsinaConfig.run_speed_factor  # 左
             d_sun = self.get_distance_sun()
             # print("d_sun:", d_sun)
-            if d_sun > 45:
+            if d_sun > 48:
                 self.phase_num = 5
         # elif self.phase_num == 5:
         #     ec.world_position -= ec.back * 1.4* _dt * UrsinaConfig.run_speed_factor  # 下
@@ -327,7 +332,7 @@ if __name__ == '__main__':
     """
     sim = CenterPointMovingSimLive()
     sim.run(
-        dt=SECONDS_PER_DAY * 10,
+        dt=SECONDS_PER_DAY * 15,
         # dt=SECONDS_PER_DAY * 3,
         init_position=[0, -60 * AU, 30 * AU],
         show_exit_button=False,
diff --git a/simulators/ursina/entities/entity_utils.py b/simulators/ursina/entities/entity_utils.py
index 98cff29046d981949d811f8981e9e54d8a62b83c..4badc257efcfe662b3f6b7b3376f834bacb200b7 100644
--- a/simulators/ursina/entities/entity_utils.py
+++ b/simulators/ursina/entities/entity_utils.py
@@ -296,7 +296,7 @@ def create_trail_curve_line(parent, pos):
                 vertices=((pos[0], pos[1], pos[2]), (trail_last_pos[0], trail_last_pos[1], trail_last_pos[2])),
                 mode='line',
                 thickness=UrsinaConfig.trail_thickness_factor),
-                color=parent.trail_color, alpha=0.5)
+                color=parent.trail_color, alpha=UrsinaConfig.trail_alpha)
             trail.set_light_off()
         else:
             pass
diff --git a/simulators/ursina/ursina_config.py b/simulators/ursina/ursina_config.py
index f18132ade3a7b1ab1d98b43d2cdb6ae1690a84b5..8d9f087a54574bdee0ba3eddf409ad4f24cb1a31 100644
--- a/simulators/ursina/ursina_config.py
+++ b/simulators/ursina/ursina_config.py
@@ -17,6 +17,7 @@ class UrsinaConfig:
     auto_scale_factor = 1.0  # __SCALE_FACTOR 不能满足，需要自动进行调整
     trail_factor = 1.0   # 拖尾大小因子。默认为1.0
     trail_thickness_factor = 1.0   # 线条拖尾厚度大小因子。默认为1.0
+    trail_alpha = 0.5
     # 旋转因子为1，则为正常的转速
     ROTATION_SPEED_FACTOR = 1.0
     # ROTATION_SPEED_FACTOR = 0.01