Here's why:
* Mass: The Sun accounts for over 99.8% of the total mass of our solar system. Its immense mass is the primary driver of its gravitational pull.
* Distance: While the planets have their own gravitational fields, they are much smaller in mass and their gravitational influence is limited to relatively close distances.
* Dominance: The Sun's gravity holds all the planets and other objects in the solar system in their orbits. It's the reason we don't fly off into space!
While Jupiter is the largest planet in our solar system, it's still significantly smaller than the Sun and its gravitational influence is dwarfed by the Sun's.