[RightWhale]

As big and heavy as that rascal is

The heavier it is, the stronger gravity acts on it. There is just enough gravity to balance the centripetal force. Ko-inky dink?

[parsifal]

The bigger it is, the harder it pulls? I still don't under stand. Is there an interaction between the bodies or is there a distortion. Either way, it looks to me like something has to be working FTL for them not to fly away from each other. parsy.