Artemis was an ancient goddess, considered ever-virgin (never married, in other words), eternally young, and ruled the wild animals of the forest. She was envisioned in the classical era as a huntress, wearing a short tunic such a man would wear, that often only covered one breast, with a quiver of arrows slung over one shoulder, carrying a bow.
The attribute of the moon indictes she was associated with the moon at times, since she did most of her hunting at night. Her dog is unnamed.
Vatican Museum, Rome