It's called the 'wait calculation' btw if you or another reader are not familiar: https://en.wikipedia.org/wiki/Interstellar_travel#Wait_calculation https://en.

It's called the 'wait calculation' btw if you or another reader are not familiar: https://en.wikipedia.org/wiki/Interstellar_travel#Wait_calculation https://en.wikipedia.org/wiki/Interstellar_travel#Wait_calcu...