There is no specific group of objects that orbits the Sun between Mars and Jupiter. The region between Mars and Jupiter is known as the asteroid belt.

It's important to note:

* Asteroids are not a single, unified group. They are a diverse collection of rocky bodies of varying sizes and compositions.

* There are no planets orbiting the Sun between Mars and Jupiter.

* While asteroids are the most common objects in the asteroid belt, there are also comets, dust, and other small bodies present.

So, while we can talk about the objects in the asteroid belt, there isn't a specific name for a "group" of them that orbits the Sun between Mars and Jupiter.