Hello, AstroSynthesis friends.
I've a question about binary systems.
When you look at the preview picture of a binary system made of two close stars, you can notice that both stars are surrounded by the orbit of one planet that turns around the system centre of mass. This is perfect: it means that the distance between the two stars is smaller than the distance between that planet (the one orbiting around the centre of mass) and the centre of mass.
Well, when you open the preview window, the picture changes, and you can see a completely different situation: while the planet seems to still orbit around the centre of mass, at the centre of the system you can see just one star, because the other is located at a very incredible distance (usually a thousand AUs). This means that, in the new diagram, the distance between the two stars is bigger than the distance between the "famous" planet and the centre of mass, a very strange fact if I consider what I've studied about astronomy.
Since I am perfectly sure that the programmers are very great and astronomy experts, I'd like someone to explain me the reason of what I've noticed. Is there something about astronomy that I ignore, or are there other things to consider?