The Sun's mass is by far the largest among all the objects in the solar system. In fact, it accounts for about 99.86% of the total mass of the entire solar system. This means that all the planets, moons, asteroids, comets, and other objects combined make up only a small fraction of the total mass, with the Sun dominating the system.
To give you a sense of scale, the mass of the Sun is approximately 1.989 × 10^30 kilograms (4.386 × 10^30 pounds). In contrast, the largest planet in our solar system, Jupiter, has a mass of about 1/1000th (0.1%) of the Sun's mass. The Earth's mass is even smaller, constituting only about 0.0003% of the Sun's mass.
The Sun's immense mass is one of the primary factors that governs the gravitational interactions within the solar system. Its gravitational pull holds all the other objects, including the planets, in orbit around it. This gravitational influence is what shapes the dynamics and stability of our solar system.