diff --git a/DATA/UNIVERSE/sectors.ini b/DATA/UNIVERSE/sectors.ini
index e63b7384..6326b547 100644
--- a/DATA/UNIVERSE/sectors.ini
+++ b/DATA/UNIVERSE/sectors.ini
@@ -23,3 +23,4 @@ name = Sol Sector
 star = G2V
 galactic = 0, 0, 0
 system_shape = round
+au = 30000000                   ; metres per AU on its round charts: 1 AU = 30,000 km in REM's Sol