if time goes to fast everything spins out of orbit.

[epic_universe_creator123]

I was playing around waiting for my planet to orbit (which would take 100,000 years ) when I decided to speed the clock up to 10,000 years p/s suddenly ALL my planets spun out of the sun's orbit and disappeared into space. FIX IT!!!!

[Xriqxa]

Wow, much aggression.png

The problem here is that you're putting the timestep WAY too fast. After a while, orbits will decay if you have a big timestep, since the faster time goes, the less calculations the simulation can make, therefore orbits go crazy.

[C7]

If you hover over the time controls, you can change the slider that determines the accuracy of the simulation.

What's happening is that simulation is accumulating enough error at that timestep that it destabilizes the orbits, and everything goes flying off into space. You can either reduce the timestep (and therefore the error), or increase the accuracy (which slows down calculation time). You can also try using another integrator, as each one of them behaves differently in these kinds of situations.

TLDR version : This is a fundamental issue with gravity solvers, and we're trying to balance speed vs accuracy here.

https://www.youtube.com/watch?v=IJ2MhXUDZ6o