How would other planets in a solar system be affected by the disappearance of one planet?

2017-03-20 23:38:07

So let's say it's a big planet, like a Jupiter. Not talking about our Solar System. This is hypothetical. But say a Jupiter-esque planet in a solar system suddenly disappears. And by disappears I mean just that. It's there one moment and gone the next. No large chunks spiraling out to hit other planets. No debris of any kind.

Its gravitational pull is therefore gone. And it had a good chunk of the mass of the solar system. Now that 20% or so of total solar system mass is no longer pulling.

What would happen to the other planets in the solar system? If that missing planet had moons, what happens to those moons?