StarNav:Celestial Navigation — is a mod that completely changes the navigation system. There are no coordinates anymore you don't even need to look for them in F3. Now you have a total of 6 tools to determine your location.
Tools
Sextant — Measure the altitude of the North Star to calculate the Z coordinate
Chronometer — Find out the reference time for calculating the X coordinate
Astrolabe — The cheapest, fastest, and least accurate way to find out where you are
Mariner's Compass — Used to determine the cardinal directions
Hand-Drawn map — Draw the map yourself, marking deep rivers, dense forests, and vast fields to get a sense of the surrounding area
Sundial — A sundial is used to tell local time, but be careful—at night, this thing is completely useless.
Guide
For more information, the game includes the Star Navigation manual, which provides formulas and methods for determining your location.
