For interplanetary space and beyond the time it takes for light to cross the distance makes more sense, I’d say. The moon is about half a second away, the sun about eight minutes, Voyager I a bit less than twenty hours, Alpha Centauri or Barnard’s about four years, and so on…
For interplanetary space and beyond the time it takes for light to cross the distance makes more sense, I’d say. The moon is about half a second away, the sun about eight minutes, Voyager I a bit less than twenty hours, Alpha Centauri or Barnard’s about four years, and so on…