The math is virtually impossible without navigation computers, which we did not have in 1969
If you would have read any of the material I posted to you, you would have seen that the star readings were keyed into the command modules’s navigation computer just for that very reason.
That is not true. You flat earthers are an embarrassment.
I have a theory why the hate and crazy ludicrous lunar landing denial. It’s because white guys accomplished the greatest human endeavor ever and feminists cant stand it.
While Apollo had a navigation computer, the ship captains of old did not and still managed to use sextants. The math of navigation is trigonometry and time X velocity. It isn't deep, it is merely laborious when done by hand.
Celestial navigation measures three angles rather than one. This is a spherical problem rather than planar. No biggie.
If you do not know how to work a trig problem, how do you imagine yourself qualified enough to make these decisions?