The Moon doesn't orbit the Sun directly. It orbits the Earth, which in turn orbits the Sun. The force keeping the Moon in orbit around the Earth is gravity.

Here's why:

* The Moon's Gravity: The Moon has its own gravitational pull, which attracts the Earth.

* Earth's Gravity: The Earth has a much stronger gravitational pull than the Moon, due to its larger mass. This stronger pull keeps the Moon in orbit around the Earth.

* Centripetal Force: The Moon's orbital motion creates a centrifugal force that tries to pull it away from the Earth. However, Earth's gravity acts as a centripetal force, keeping the Moon in its curved path.

While the Sun's gravity has a significant influence on the Earth, it's not the primary force holding the Moon in its orbit. The Moon's orbit is primarily governed by the gravitational interplay between it and the Earth.