So I've somehow built my wormhole. I've stuffed the thing with negative energy so it's stable and traversable. I've got one end in orbit around Earth and the other in orbit around Mars.
My question is how long does it take to travel from one end of the wormhole to the other? The two ends are constantly changing position relative to each other in real space as the Earth and Mars move around the Sun but is the length of the wormhole changing too?
If I moved the Mars end of the wormhole to a distant star system, would the transit time through the wormhole be instantaneous or would it take longer than when it was in orbit around Mars? If so how long?