Method and tables

FR

What is a line of position?

A line of position is perpendicular to the body's azimuth, plotted at the intercept from the Assumed Position. A single line gives a line of possibilities. Two intersecting lines give a fixed point.

Related questions

What are HO 249 sight reduction tables? What's the difference between HO 249 and HO 229? Can I use a calculator? What is dip correction?