Home > Term: first light
first light
The beginning of morning nautical twilight; i.e., when the center of the morning sun is 12 degrees below the horizon.
- Szófaj: noun
- Ipar/Tárgykör: Military
- Kategória: General military
- Company: U.S. DOD
0
Szerzőb
- Lucrezia
-
(Gold) 3125 points - 100% positive feedback
