Step 1: I. Notice about Copyright
Techniques used in celestial navigation follow the standard course of planets and stars, as well as the physics behind that governs those courses, which are laws of nature. U.S. and international copyright law forbid the copyright, patent, trademark, etc of natural laws. Just because you discovered it, doesn't mean you own it.
The reason I include this is that some of these techniques are several thousand years old, while a few have only been discovered recently with current technology. But again, the same principle applies, you can't own it.
Step 2: What you need
- An *accurate watch
- Your hand
- Some sticks (should be easily found)
*I define an accurate watch as one that has had its time set to an atomic clock within the last 4 weeks. The reason for this is that most watches use the oscillations of a quartz crystal, to keep time many times more accurately than a mechanical clock. However, it still can lose or gain 5 seconds a week. To get the most accurate calculations, the watch should be within 30 seconds of the actual time.
NOTE: The watch will not always gain or lose time at the same rate. Odds are, you will barely be off by 2-3 seconds most of the time. However you should get in the habit of setting the watch every month or so.
By the way, the calculations that you will be doing here are nothing like typical celestial navigation. Nothing more than simple multiplication, division, addition, and subtraction.