all solar system orbit around a(n)

asteroid belt
star
galaxy
planet

star

all solar systems orbit around a star.

All objects in the solar system orbit around a star, specifically our sun. The star, in this case, is the center of the solar system and provides the gravitational pull that keeps all the other celestial bodies in motion. The sun's gravitational force keeps planets, asteroids, and other objects bound to it, causing them to orbit around it in specific paths known as orbits.

However, it is important to note that there is an asteroid belt in our solar system known as the "Main Asteroid Belt." This belt is located between the orbits of Mars and Jupiter and consists of countless rocky and metallic objects that failed to form into a planet due to Jupiter's strong gravitational influence. While there are many asteroids in the belt, they do not have a significant gravitational impact on the orbits of the planets or other objects in the solar system.

So, to answer your question directly, all solar system objects (including planets) orbit around a star, primarily the sun.