Aratoma II has 4 moons in total. Out of these, when people talk about "the moon" from a planetside perspective, they are referring to the largest one.
The remaining 3 moons are officially classified as moons, but it varies how they are considered in common parlance from a planetside perspective.
First Moon
The most prominent and visible celestial body in the night-time sky above Aratoma II. It measures approximately thrice the size of the other moons around the planet.
Second Moon
Third Moon
Fourth Moon
This celestial body is rich in minerals, and major shares of its planet surface has been bought up by a private stellar mining company with a seat at the Aratoma Merchants Guild.