: A highly accurate watch synchronized to Universal Time (UTC) to pinpoint exactly when a measurement was taken.
: A publication containing the predicted positions of celestial bodies throughout the year. Celestial Navigation
: The primary instrument used to measure the angle between the horizon and a celestial body. : A highly accurate watch synchronized to Universal
: Draw Lines of Position (LOPs) on a plotting sheet . The point where multiple lines intersect is your actual position. 📱 Modern Alternatives Charles Vaillancourt - Facebook Celestial Navigation