* In terms of distance from the Sun: Saturn is the next planet after Jupiter.

* In terms of order in the solar system: Saturn is the next planet after Jupiter, following the order of Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.

* In terms of physical proximity at any given moment: Jupiter and Saturn constantly move around the Sun, so their relative positions change. There might be other objects like asteroids or comets that are physically closer to Jupiter at any given time.

So, to give you the most accurate answer, please clarify what you mean by "next to".