From 3af901eedecc08f81faea648bfd7a6648b3ba700 Mon Sep 17 00:00:00 2001
From: Ensign Pixel <pixel@ss-probably-fine.example>
Date: Tue, 29 Sep 2026 04:03:00 +0200
Subject: [PATCH] feat(routes): add Callisto

---
 nav.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/nav.py b/nav.py
index 8f4ec88..b27267c 100644
--- a/nav.py
+++ b/nav.py
@@ -22,6 +22,7 @@ DISTANCES = {
     ("ceres", "europa"): 404.0,
     ("europa", "io"): 0.25,
     ("europa", "ganymede"): 0.4,
+    ("ganymede", "callisto"): 0.8,
 }
 
 # Every route starts at Earth.
@@ -38,6 +39,7 @@ ROUTES = {
     "europa": ["earth", "gateway", "mars", "ceres", "europa"],
     "io": ["earth", "gateway", "mars", "ceres", "europa", "io"],
     "ganymede": ["earth", "gateway", "mars", "ceres", "europa", "ganymede"],
+    "callisto": ["earth", "gateway", "mars", "ceres", "europa", "ganymede", "callisto"],
 }
 
 NAMES = {
@@ -55,6 +57,7 @@ NAMES = {
     "europa": "Europa",
     "io": "Io",
     "ganymede": "Ganymede",
+    "callisto": "Callisto",
 }
 
 CRUISE_SPEED = 0.87  # million km per day