diff --git a/objs/halley_comet.py b/objs/halley_comet.py
index abb58184909dc9ad30c06ee1653da9ad95302aa9..8d90b6b2154cf9ccb2d019ec7d072e812063199a 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, 1.5, 100)
+        self.comet_info = (0.03, 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 90a265673fad352e7618fe185d342b4f0d715577..375e1701bd040d86383eacac9e33144a1723b0a9 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 = 0.8
+        MAX_ALPHA = 1
 
         # 大于完全消失距离
         if d_au >= HIDE_DISTANCE[1]: