I want to know, seeing as space-time is supposed to be curved and a wormhole bisects that curve, whether the curve is like half of a perfect circle. So for example, if there was a wormhole between the sun and alpha centauri, and the distance between them is about 4.3 light years, could you figure out the wormhole distance by multiplying 4.3 by 2, and then dividing the total by pi? Or is the space-time curve more variable, like half of an ellipse? As you can probably tell, I'm not a scientist. I just want to know.