diff --git a/objs/halley_comet.py b/objs/halley_comet.py
index 8d90b6b2154cf9ccb2d019ec7d072e812063199a..35acf12ac998d1aad1a5f8ab3f85b2f24a82baa5 100644
--- a/objs/halley_comet.py
+++ b/objs/halley_comet.py
@@ -50,7 +50,7 @@ class HalleComet(RockSnow):
         super().__init__(**params)
         # create_cone(radius, height, subdivisions, r=0.1)
         # self.comet_info = (0.18, 2.0, 100, 0.2)
-        self.comet_info = (0.03, 0.18, 2, 100)
+        self.comet_info = (0.05, 0.18, 2, 100)
 
 
 from ursina.prefabs.primitives import Shader
diff --git a/sim_scenes/solar_system/halley_comet_sim.py b/sim_scenes/solar_system/halley_comet_sim.py
index 375e1701bd040d86383eacac9e33144a1723b0a9..1b169898432bd2905f1b9eac77c3db33c61199f3 100644
--- a/sim_scenes/solar_system/halley_comet_sim.py
+++ b/sim_scenes/solar_system/halley_comet_sim.py
@@ -155,7 +155,7 @@ class HalleyCometSim(HalleyCometSimBase):
         # 渐渐消失的距离范围（开始消失距离, 完全消失距离）
         HIDE_DISTANCE = 3, 12
         # 彗星最大的透明度
-        MAX_ALPHA = 1
+        MAX_ALPHA = 0.8
 
         # 大于完全消失距离
         if d_au >= HIDE_DISTANCE[1]:
@@ -165,8 +165,8 @@ class HalleyCometSim(HalleyCometSimBase):
         else:
             alpha = MAX_ALPHA
         # 修改彗星尾巴的透明度
-        c = self.halley_comet.planet.comet_trail
-        c.alpha = alpha
+        self.halley_comet.planet.comet_trail.alpha = alpha
+        self.halley_comet.planet.comet_sphere.alpha = alpha
 
     def show_milestone_lable(self, last_trail, dt):
         """
diff --git a/simulators/ursina/entities/planet.py b/simulators/ursina/entities/planet.py
index 5743279b0f0de17a402762640b513a83ba0f821a..d2e834533535712d1decae3ab60072cd0c4a6851 100644
--- a/simulators/ursina/entities/planet.py
+++ b/simulators/ursina/entities/planet.py
@@ -188,8 +188,11 @@ class Planet(Entity):
                                   position=(0, 0, 0),
                                   rotation=(0, 90, 90), double_sided=True, alpha=0.8)
 
+        self.comet_sphere = Entity(parent=self, model="sphere", texture="",
+                                   color=color.white, scale=2.2, double_sided=True, alpha=0.6)
         # 设置行星环不受灯光影响，否则看不清行星环
         self.comet_trail.set_light_off()
+        self.comet_sphere.set_light_off()
 
     def create_rotate_entity(self):
         """