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Navigator's performance.

Navigator Light - particularly the visible stars command - does a great deal of floating point calculations. The use of a computer with numeric coprocessor is recommended. This particular command, that takes less than 0.5 sec on a Pentium 133, takes 12 seconds in a 486 SX 25.

Navigator's calculation methods.

For the technically inclined.

 

Celestial navigation fundamentals | On Line Almanac

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