a planet
a planet
Its the suns surface
Jupiter is the largest object that orbits the sun.
A comet.
Mercury, is the smallest planet that orbits the sun.
There is no "small dense object" that orbits between Mars and Jupiter. There are however numerous asteroids which are rocky objects up to a few hundred miles in diameter that orbit in this region making up what is called the asteroid belt.
Asteroid - a small, rocky body that orbits the Sun.
The sun's gravity holds the planets in their orbits. It also holds other space objects in their orbits, such as asteroids.
The sun orbits the center of the Milky Way.
The sun is a star and planets and asteroids orbit it.
A satellite is an object which orbits a larger body. For example, the Moon orbits the Earth, and the Earth orbits the Sun. The Moon is a satellite of the Earth and the Earth is a Satellite of the Sun.
It is our Moon.