diff --git a/NewHorizons/Schemas/body_schema.json b/NewHorizons/Schemas/body_schema.json
index fe3f88b1..7e36c1c6 100644
--- a/NewHorizons/Schemas/body_schema.json
+++ b/NewHorizons/Schemas/body_schema.json
@@ -2335,7 +2335,7 @@
         },
         "supernovaSize": {
           "type": "number",
-          "description": "Radius of the supernova.",
+          "description": "Radius of the supernova. Any planets within 80% of this will be destroyed.",
           "format": "float",
           "default": 50000.0,
           "minimum": 0.0