Quote from Tony on 10/07/14 at 17:55:03:If it is the last sim you ran, it will be saved as resume.gsim and will open when you run gravity simulator again.
Otherwise, I don't know why its doing that.
edit:
It's doing that because you've locked one of your primaries to the center of the screen rather than the system barycenter.
Press the F button on the Graphics Options interface.
Well , I ran this application not with GSim , but with a simulator I wrote by my own.
It lets detach a probe from an Orbiter at command input , so I'm not sure anymore when I hitted the detach button and the probe was created .
I wanted to simulate the Rosetta's landing on 67P . In GSim this isn't easy as we have a rather complex object and complex gravity potential field.
On your edit : The screenshot was made with the barycenter of the binary kept in the middle . So both binary stars are in orbit around their COG.
Maybe if I repeat the sim I can get the same result after let's say 100 tries , not sure about this .
What I tried to say is that imo this orbit is a realistic orbit and not an "engineered ,well defined" orbit .