Compared to Earth, the mass, size and density of Venus is almost exactly the same. However, how does this planet differ when it comes to moons? The Number of Moons on Venus. The solar system has dozens of moons, with the planets all having varying amounts. However, Venus, like Mercury, does not have any moons. Artist's concept of a Venus orbiter. Venus is a type of terrestrial plant and it is located second from the sun behind Mercury.