One of the clearest signs we live in a pinnacle of technology is that mathematicians and astronomers have been refining the equations that produce ephemerides f

One of the clearest signs we live in a pinnacle of technology is that mathematicians and astronomers have been refining the equations that produce ephemerides for thousands of years, and the inverse problem (given star locations and time, predict location and pointing vector) to the point where an average human with average hardware can instantly estimate things that would have taken the world's most powerful observatories a great deal of effort to do. https://en.wikipedia.org/wiki/Fundamental_ephemeris https://en.wikipedia.org/wiki/Fundamental_ephemeris