Quote Originally Posted by Quirel View Post

More seriously, 'Cycle' is usually used for a non-Earth year. In this case, though, I think it refers to something on the ship, like the engine. So, in one cycle of the engine (Turning over, going from positive to negative polarity, whatever) the Bucephalus is propelled approximately one AU.

Which, given that we no longer live on Earth, might have been redefined as well.
In this context, the word AU could also mean anything. We today know it as the rough distance from Earth to the Sun, but it In regards the SCU, or more specifically, the Koprulu sector, it might mean something different. Even the word 'mile' has meant different measurments throughout the centuries and among various cultures; e.g. an ancient Roman mile was about 400 ft shorter than today's mile.