The Solar System has a diameter of 3 trillion kilometers, with a core area that includes eight major planets and millions of small asteroids.
the mass of the Sun accounts for 99.86% of the total mass of the system.
This is why so many planets and small asteroids revolve around the Sun.
This phenomena created a question which it is still remain mystery till today .
With the mass of the Galactic Center is only 0.0005% of the Milky Way Galaxy. Why can it hold trillions of star systems in place?
The theory or hypothesis was carried out by the scientific community until 1937, with the success of the radio telescope, that people gradually discovered a massive black hole at the position of the Galactic Center.
Trillions of star systems within the Milky Way Galaxy revolve around the Galactic Center, largely influenced by the giant black hole.